{"cik":"0001470699","entityType":"operating","sic":"8200","sicDescription":"Services-Educational Services","ownerOrg":null,"insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":1,"name":"Archipelago Learning, Inc.","tickers":[],"exchanges":[],"ein":"270767387","lei":null,"description":"","website":"","investorWebsite":"","category":"Large Accelerated","fiscalYearEnd":"1231","stateOfIncorporation":"DE","stateOfIncorporationDescription":"DE","addresses":{"mailing":{"street1":"3232 MCKINNEY AVENUE","street2":"SUITE 400","city":"DALLAS","stateOrCountry":"TX","zipCode":"75204","stateOrCountryDescription":"TX","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"3232 MCKINNEY AVENUE","street2":"SUITE 400","city":"DALLAS","stateOrCountry":"TX","zipCode":"75204","stateOrCountryDescription":"TX","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":"800 419-3191","flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0001193125-12-250705","0001193125-12-238986","0001193125-12-238437","0001354457-12-000109","0001181431-12-030682","0001181431-12-030680","0001181431-12-030677","0001181431-12-030674","0001181431-12-030672","0001181431-12-030669","0001181431-12-030665","0001181431-12-030663","0001181431-12-030660","0001193125-12-236267","0001193125-12-228819","0001193125-12-224674","0001193125-12-218407","0001193125-12-196748","0001193125-12-173006","0001193125-12-162558","0001193125-12-162432","0001193125-12-143591","0001193125-12-143568","0001193125-12-133145","0001193125-12-132166","0001193125-12-116803","0001193125-12-095548","0001193125-12-095541","0001193125-12-095550","0001193125-12-095546","0001144204-12-005662","0001140361-12-002250","0001140361-12-002247","0001140361-12-002246","0001140361-12-002245","0001140361-12-002244","0001140361-12-002243","0001140361-12-002242","0001140361-12-002241","0001140361-12-002240","0000019617-12-000006","0001193125-12-009202","0001193125-11-348837","0001144204-11-068934","0000950123-11-097029","0000950123-11-097022","0000950123-11-088819","0001470699-11-000008","0000950123-11-075136","0000950123-11-075083","0000950123-11-074140","0000950123-11-061788","0001140361-11-033064","0000950123-11-058669","0000950123-11-057595","0000950123-11-054129","0000950123-11-052115","0000950123-11-048345","0000950123-11-048330","9999999997-11-010061","0000950123-11-037811","0001470699-11-000006","0000950123-11-033337","0000950123-11-026483","0000950123-11-024538","0000950123-11-023636","0000950123-11-022501","0000950123-11-019847","0001140361-11-012589","0000950123-11-016590","0000950123-11-015252","0000950123-11-014543","0001140361-11-008356","0001470699-11-000005","0000019617-11-000091","0001140361-11-003035","0001140361-11-002603","0001140361-11-002600","0001140361-11-002597","0001140361-11-002596","0001470699-11-000004","0001470699-11-000003","0001470699-11-000002","0001470699-11-000001","0000950123-11-001549","0000950123-11-001139","0000950123-10-111168","0001140361-10-047288","0000950123-10-106973","0000950123-10-104882","0000950123-10-103254","0000950123-10-086444","0001209191-10-044001","0000950123-10-079544","0000950123-10-077827","0001299933-10-003048","0000014661-10-000008","0000909518-10-000411","0000909518-10-000410","0001209191-10-034104","0000950123-10-057942","0000909518-10-000405","0001488138-10-000002","0000909518-10-000403","0001209191-10-033569","0001209191-10-033566","0001209191-10-033564","0000950123-10-057102","0001299933-10-002308","9999999997-10-011806","0001209191-10-028951","0001209191-10-028949","0000950123-10-050723","0000950123-10-048482","0001299933-10-001913","0001299933-10-001695","0000950123-10-038310","0001209191-10-015717","0001209191-10-015490","0000950123-10-021637","0000909518-10-000146","0000909518-10-000126","0001209191-10-009776","0000950123-10-013379","0000909518-10-000108","0000950123-10-013192","0000950123-10-013191","0001209191-10-007165","0000909518-10-000040","0000950123-09-066178","0000909518-09-000846","0000909518-09-000845","0000909518-09-000844","0000909518-09-000840","0000909518-09-000839","0000909518-09-000838","0000909518-09-000837","0000909518-09-000836","0000909518-09-000835","0000909518-09-000834","0000909518-09-000833","0000909518-09-000832","0000909518-09-000831","0000909518-09-000830","0000909518-09-000829","0000950123-09-064909","0000909518-09-000814","0000909518-09-000812","0000909518-09-000811","0000909518-09-000810","0000909518-09-000809","0000909518-09-000808","0000909518-09-000807","0000909518-09-000806","0000909518-09-000805","0000909518-09-000804","0000909518-09-000803","0000909518-09-000802","0000909518-09-000801","0000950123-09-064481","9999999995-09-003235","0000950123-09-064374","9999999997-09-026684","0000950123-09-064245","0000950123-09-064218","0000950123-09-063830","0000950123-09-063563","0000950123-09-063537","0000950123-09-063281","0000950123-09-059825","0000950123-09-059824","0000950123-09-056170","0000000000-09-059656","0000950123-09-049802","0000000000-09-055741","0000950123-09-040948"],"filingDate":["2012-05-29","2012-05-18","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-16","2012-05-14","2012-05-10","2012-05-08","2012-04-30","2012-04-20","2012-04-13","2012-04-13","2012-03-30","2012-03-30","2012-03-27","2012-03-26","2012-03-15","2012-03-05","2012-03-05","2012-03-05","2012-03-05","2012-02-03","2012-01-12","2012-01-12","2012-01-12","2012-01-12","2012-01-12","2012-01-12","2012-01-12","2012-01-12","2012-01-12","2012-01-11","2012-01-11","2011-12-21","2011-12-08","2011-11-09","2011-11-09","2011-10-06","2011-08-26","2011-08-09","2011-08-09","2011-08-08","2011-06-27","2011-06-16","2011-06-13","2011-06-08","2011-05-26","2011-05-19","2011-05-10","2011-05-10","2011-05-02","2011-04-21","2011-04-08","2011-04-06","2011-03-18","2011-03-11","2011-03-09","2011-03-07","2011-02-28","2011-02-28","2011-02-22","2011-02-17","2011-02-16","2011-02-11","2011-02-02","2011-01-31","2011-01-14","2011-01-12","2011-01-12","2011-01-12","2011-01-12","2011-01-12","2011-01-12","2011-01-12","2011-01-12","2011-01-10","2011-01-07","2010-12-06","2010-11-29","2010-11-18","2010-11-12","2010-11-09","2010-09-16","2010-08-26","2010-08-20","2010-08-16","2010-08-11","2010-08-04","2010-06-15","2010-06-15","2010-06-14","2010-06-14","2010-06-14","2010-06-11","2010-06-10","2010-06-10","2010-06-10","2010-06-10","2010-06-10","2010-06-09","2010-05-20","2010-05-19","2010-05-19","2010-05-18","2010-05-12","2010-05-11","2010-04-29","2010-04-26","2010-03-09","2010-03-09","2010-03-05","2010-03-02","2010-02-24","2010-02-16","2010-02-16","2010-02-16","2010-02-16","2010-02-16","2010-02-05","2010-01-29","2009-11-25","2009-11-25","2009-11-25","2009-11-25","2009-11-23","2009-11-23","2009-11-23","2009-11-23","2009-11-23","2009-11-23","2009-11-23","2009-11-23","2009-11-23","2009-11-23","2009-11-23","2009-11-23","2009-11-23","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-20","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-18","2009-11-17","2009-11-17","2009-11-17","2009-11-09","2009-11-09","2009-11-02","2009-10-22","2009-10-13","2009-10-02","2009-09-03"],"reportDate":["","","2012-05-17","","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-17","2012-05-16","2012-05-01","2012-03-31","2012-05-08","2011-12-31","","","","","","2012-03-26","","2011-12-31","2012-03-03","2012-03-02","","","","2012-01-10","2012-01-10","2012-01-10","2012-01-10","2012-01-10","2012-01-10","2012-01-10","2012-01-10","2012-01-10","","2012-01-01","2011-06-08","","2011-09-30","2011-11-09","2011-10-05","2011-08-24","2011-06-30","2011-08-09","2011-08-03","2011-06-27","2011-06-08","2011-06-08","2011-06-08","2011-05-26","2011-05-16","2011-03-31","2011-05-10","2010-12-31","2011-06-08","2011-04-05","2011-04-05","2011-03-15","2010-12-31","2011-03-09","2011-03-01","2011-02-24","2011-02-24","","","","2011-01-31","2011-01-31","","2011-01-10","2011-01-10","2011-01-10","2011-01-10","2011-01-10","2011-01-10","2011-01-10","2011-01-10","2011-01-10","2011-01-07","2011-01-06","2010-12-01","2010-11-18","2010-11-15","2010-09-30","2010-11-09","2010-09-07","2010-08-24","2010-06-09","2010-06-30","2010-08-11","","2010-06-09","2010-06-09","2010-06-14","2010-06-11","","","2010-06-09","2010-06-08","2010-06-08","2010-06-08","2010-06-10","2010-06-08","2009-12-31","2010-05-19","2010-05-19","2010-05-13","2010-03-31","2010-05-11","2010-04-23","2010-06-08","2009-11-19","2010-03-04","2009-12-31","2010-03-02","2010-02-18","2009-11-19","","","","","2010-01-27","2010-01-28","2009-11-19","2009-11-25","2009-11-25","2009-11-25","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-23","2009-11-19","2009-11-19","","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","2009-11-19","","","","","","","","","","","","","","","","",""],"acceptanceDateTime":["2012-05-29T16:41:21.000Z","2012-05-18T10:16:38.000Z","2012-05-17T21:02:56.000Z","2012-05-17T20:58:41.000Z","2012-05-17T20:53:39.000Z","2012-05-17T20:51:09.000Z","2012-05-17T20:49:01.000Z","2012-05-17T20:46:18.000Z","2012-05-17T20:44:41.000Z","2012-05-17T20:42:39.000Z","2012-05-17T20:40:21.000Z","2012-05-17T20:38:27.000Z","2012-05-17T20:36:32.000Z","2012-05-16T17:47:15.000Z","2012-05-11T21:36:53.000Z","2012-05-10T17:04:58.000Z","2012-05-08T20:07:25.000Z","2012-04-30T21:27:55.000Z","2012-04-20T19:43:29.000Z","2012-04-13T20:00:25.000Z","2012-04-13T19:10:42.000Z","2012-03-30T20:10:59.000Z","2012-03-30T20:07:08.000Z","2012-03-27T10:10:46.000Z","2012-03-26T20:32:23.000Z","2012-03-15T17:03:53.000Z","2012-03-05T13:04:21.000Z","2012-03-05T13:03:20.000Z","2012-03-05T13:02:27.000Z","2012-03-05T13:01:25.000Z","2012-02-03T16:43:42.000Z","2012-01-12T21:51:54.000Z","2012-01-12T21:50:00.000Z","2012-01-12T21:49:30.000Z","2012-01-12T21:48:45.000Z","2012-01-12T21:48:19.000Z","2012-01-12T21:47:50.000Z","2012-01-12T21:47:15.000Z","2012-01-12T21:46:44.000Z","2012-01-12T21:45:53.000Z","2012-01-11T22:30:32.000Z","2012-01-11T21:08:15.000Z","2011-12-21T20:50:00.000Z","2011-12-08T16:11:15.000Z","2011-11-09T21:10:32.000Z","2011-11-09T21:06:13.000Z","2011-10-06T10:02:05.000Z","2011-08-26T21:36:02.000Z","2011-08-09T20:36:02.000Z","2011-08-09T20:05:49.000Z","2011-08-08T13:27:25.000Z","2011-06-27T13:00:41.000Z","2011-06-16T13:48:00.000Z","2011-06-13T20:30:22.000Z","2011-06-08T21:21:29.000Z","2011-05-26T12:12:15.000Z","2011-05-19T21:06:37.000Z","2011-05-10T20:25:23.000Z","2011-05-10T20:16:51.000Z","2011-05-10T18:46:35.000Z","2011-04-21T20:11:43.000Z","2011-04-08T13:42:45.000Z","2011-04-06T20:22:56.000Z","2011-03-17T22:17:55.000Z","2011-03-11T15:50:16.000Z","2011-03-09T21:05:36.000Z","2011-03-07T16:05:47.000Z","2011-02-28T21:58:43.000Z","2011-02-28T19:45:12.000Z","2011-02-22T22:11:31.000Z","2011-02-17T22:30:47.000Z","2011-02-16T15:58:29.000Z","2011-02-11T22:31:32.000Z","2011-02-02T15:52:11.000Z","2011-01-31T16:46:21.000Z","2011-01-14T22:26:38.000Z","2011-01-12T21:46:14.000Z","2011-01-12T21:45:08.000Z","2011-01-12T21:43:54.000Z","2011-01-12T21:42:40.000Z","2011-01-12T21:10:29.000Z","2011-01-12T21:03:01.000Z","2011-01-12T20:53:42.000Z","2011-01-12T20:32:26.000Z","2011-01-07T22:51:09.000Z","2011-01-06T22:58:53.000Z","2010-12-06T21:25:06.000Z","2010-11-29T17:16:42.000Z","2010-11-18T19:16:49.000Z","2010-11-12T20:05:39.000Z","2010-11-09T21:13:16.000Z","2010-09-15T22:44:46.000Z","2010-08-26T16:43:47.000Z","2010-08-20T18:38:35.000Z","2010-08-16T16:56:52.000Z","2010-08-11T20:58:16.000Z","2010-08-04T21:04:37.000Z","2010-06-15T21:23:12.000Z","2010-06-15T21:19:46.000Z","2010-06-14T22:30:33.000Z","2010-06-14T20:23:39.000Z","2010-06-14T10:01:46.000Z","2010-06-11T19:31:31.000Z","2010-06-10T21:29:15.000Z","2010-06-10T19:50:43.000Z","2010-06-10T19:47:21.000Z","2010-06-10T19:45:08.000Z","2010-06-10T11:19:31.000Z","2010-06-09T20:47:15.000Z","2010-05-24T16:27:13.000Z","2010-05-19T19:46:02.000Z","2010-05-19T19:41:36.000Z","2010-05-18T17:03:57.000Z","2010-05-12T20:28:33.000Z","2010-05-11T20:15:18.000Z","2010-04-29T16:21:33.000Z","2010-04-26T21:30:26.000Z","2010-03-09T22:22:20.000Z","2010-03-09T16:55:27.000Z","2010-03-05T21:53:46.000Z","2010-03-02T21:12:56.000Z","2010-02-24T21:39:28.000Z","2010-02-17T02:42:18.000Z","2010-02-16T22:10:33.000Z","2010-02-16T21:21:56.000Z","2010-02-16T20:43:16.000Z","2010-02-16T20:42:35.000Z","2010-02-05T19:53:44.000Z","2010-01-29T22:30:41.000Z","2009-11-25T19:59:01.000Z","2009-11-25T16:35:23.000Z","2009-11-25T16:34:37.000Z","2009-11-25T16:33:19.000Z","2009-11-24T00:29:17.000Z","2009-11-24T00:28:01.000Z","2009-11-24T00:26:48.000Z","2009-11-24T00:25:33.000Z","2009-11-24T00:24:28.000Z","2009-11-24T00:21:09.000Z","2009-11-24T00:11:21.000Z","2009-11-24T00:10:17.000Z","2009-11-24T00:07:06.000Z","2009-11-24T00:06:09.000Z","2009-11-24T00:05:07.000Z","2009-11-24T00:03:18.000Z","2009-11-23T11:04:18.000Z","2009-11-20T16:02:43.000Z","2009-11-20T13:32:19.000Z","2009-11-20T13:31:32.000Z","2009-11-20T13:29:29.000Z","2009-11-20T13:28:01.000Z","2009-11-20T13:27:12.000Z","2009-11-20T13:25:23.000Z","2009-11-20T13:23:34.000Z","2009-11-20T13:21:48.000Z","2009-11-20T13:20:46.000Z","2009-11-20T13:18:05.000Z","2009-11-20T13:15:07.000Z","2009-11-20T13:11:46.000Z","2009-11-20T02:45:52.000Z","2009-11-20T05:15:18.000Z","2009-11-19T22:08:34.000Z","2009-11-19T20:58:36.000Z","2009-11-19T18:54:04.000Z","2009-11-19T17:53:50.000Z","2009-11-18T18:03:28.000Z","2009-11-17T21:57:34.000Z","2009-11-17T21:28:22.000Z","2009-11-17T11:06:28.000Z","2009-11-09T14:25:23.000Z","2009-11-09T14:24:47.000Z","2009-11-02T19:45:21.000Z","2009-10-22T18:05:20.000Z","2009-10-13T11:16:24.000Z","2009-10-02T15:52:19.000Z","2009-09-03T21:17:26.000Z"],"act":["34","33","34","34","","","","","","","","","","34","34","34","34","34","34","34","","34","34","34","34","34","34","34","34","34","34","","","","","","","","","","34","34","34","34","34","34","34","","34","34","34","34","","34","34","34","34","34","34","34","34","","34","34","34","34","34","34","","34","34","34","","","34","","","","","","","","","","34","34","34","","34","34","34","34","","34","34","34","34","","","","34","33","33","34","","","","34","34","34","","","34","34","34","34","34","","","34","34","34","","34","34","34","34","","34","34","","","","","","","","","","","","","","","","33","","","","","","","","","","","","","","33","33","34","34","34","33","33","34","","33","","33","33","","33","","33"],"form":["15-12B","S-8 POS","8-K","25-NSE","4","4","4","4","4","4","4","4","4","8-K","8-K","10-Q","8-K","10-K/A","DEFA14A","DEFM14A","CORRESP","SC 13G/A","SC 13G/A","PREM14A","DEFA14A","10-K","8-K","8-K","DEFA14A","DEFA14A","SC 13G/A","4","4","4","4","4","4","4","4","3","SC 13G/A","8-K","8-K/A","SC 13G/A","10-Q","8-K","8-K","4","10-Q","8-K","8-K","8-K","3","8-K","8-K","8-K","8-K","10-Q","8-K","ARS","DEF 14A","4","8-K","8-K","10-K","8-K","8-K","8-K","4","SC 13G/A","SC 13G/A","SC 13G/A","3","4","SC 13G","3","4","4","4","4","4","4","4","4","8-K/A","8-K","8-K","3","8-K","10-Q","8-K","8-K","4","8-K/A","10-Q","8-K","SC 13G","3","3","4","8-K","144","D","8-K","4","4","4","8-K","8-K","ARS","4","4","8-K","10-Q","8-K","8-K","DEF 14A","3/A","4","10-K","8-K","8-K","3","SC 13G","SC 13G","SC 13G","SC 13G","3","8-K","8-K","4","4","4","4","4","4","4","4","4","4","4","4","3/A","4","4","424B4","3","3","3","3","3","3","3","3","3","3","3","3","3","S-8","EFFECT","FWP","CERTNAS","8-A12B","S-1/A","S-1/A","FWP","CORRESP","S-1/A","CORRESP","S-1/A","S-1/A","UPLOAD","S-1/A","UPLOAD","S-1"],"fileNumber":["001-34555","333-163236","001-34555","001-34555","","","","","","","","","","001-34555","001-34555","001-34555","001-34555","001-34555","001-34555","001-34555","","005-85321","005-85321","001-34555","001-34555","001-34555","001-34555","001-34555","001-34555","001-34555","005-85321","","","","","","","","","","005-85321","001-34555","001-34555","005-85321","001-34555","001-34555","001-34555","","001-34555","001-34555","001-34555","001-34555","","001-34555","001-34555","001-34555","001-34555","001-34555","001-34555","001-34555","001-34555","","001-34555","001-34555","001-34555","001-34555","001-34555","001-34555","","005-85321","005-85321","005-85321","","","005-85321","","","","","","","","","","001-34555","001-34555","001-34555","","001-34555","001-34555","001-34555","001-34555","","001-34555","001-34555","001-34555","005-85321","","","","001-34555","001-34555","021-143380","001-34555","","","","001-34555","001-34555","001-34555","","","001-34555","001-34555","001-34555","001-34555","001-34555","","","001-34555","001-34555","001-34555","","005-85321","005-85321","005-85321","005-85321","","001-34555","001-34555","","","","","","","","","","","","","","","","333-161717","","","","","","","","","","","","","","333-163236","333-161717","333-161717","001-34555","001-34555","333-161717","333-161717","333-161717","","333-161717","","333-161717","333-161717","","333-161717","","333-161717"],"filmNumber":["12873358","12853833","12852791","12852623","","","","","","","","","","12848193","12835883","12829186","12821480","12796699","12770797","12758714","","12729282","12729222","12715703","12714804","12693175","12664744","12664743","12664742","12664741","12568540","","","","","","","","","","12522751","12522253","111274590","111250132","111191808","111191752","111128205","","111021322","111020835","111015815","11931914","","11908462","11901635","11872605","11858671","11828539","11828403","11007417","11773585","","11743406","11696186","11680638","11675138","11667103","11647095","","11629357","11621845","11616420","","","11558268","","","","","","","","","","11518472","11515179","101234516","","101202254","101185879","101176405","101074720","","101029979","101018330","101008584","10991737","","","","10895093","10893684","10892568","10891110","","","","10888926","10887626","10012818","","","10841783","10824767","10821201","10779981","10771156","","","10661373","10649407","10630207","","10609512","10608201","10607284","10607272","","10561195","091208134","","","","","","","","","","","","","","","","091200145","","","","","","","","","","","","","","091197130","091197161","091196467","09012635","091195493","091195242","091192752","091191035","","091189001","","091166747","091150800","","091115341","","091054301"],"items":["","","1.02,2.01,3.01,3.03,5.01,5.02,5.03,8.01,9.01","","","","","","","","","","","5.07,9.01","5.02,9.01","","2.02,9.01","","","","","","","","","","1.01,9.01","1.01,2.02,9.01","","","","","","","","","","","","","","5.02,8.01","5.07","","","2.02,9.01","1.01,7.01,9.01","","","2.02,9.01","5.02,5.03,5.05,9.01","8.01,9.01","","5.02,8.01,9.01","5.07","2.02,7.01,9.01","3.01","","2.02,9.01","","","","3.01,5.02,9.01","1.01,9.01","","2.02,9.01","5.02,8.01,9.01","5.02,9.01","","","","","","","","","","","","","","","","","9.01","5.02,8.01,9.01","2.02,7.01,9.01","","5.02,8.01,9.01","","2.02,9.01","2.02,7.01,9.01","","2.01,9.01","","2.02,8.01,9.01","","","","","2.02,7.01,9.01","","06","1.01,2.01,2.03,3.02,3.03,5.02,9.01","","","","7.01,9.01","5.07,9.01","","","","2.02,7.01,9.01","","2.02,9.01","1.01,2.03","","","","","2.02,9.01","5.02","","","","","","","5.02,9.01","5.02,8.01,9.01","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","","S-1,,2009-11-19 17:00:00","","","","","","","","","","","","","","",""],"core_type":["15-12B","S-8 POS","8-K","25-NSE","4","4","4","4","4","4","4","4","4","8-K","8-K","10-Q","8-K","10-K/A","DEFA14A","DEFM14A","CORRESP","SC 13G/A","SC 13G/A","PREM14A","DEFA14A","10-K","8-K","8-K","DEFA14A","DEFA14A","SC 13G/A","4","4","4","4","4","4","4","4","3","SC 13G/A","8-K","8-K/A","SC 13G/A","10-Q","8-K","8-K","4","10-Q","8-K","8-K","8-K","3","8-K","8-K","8-K","8-K","10-Q","8-K","ARS","DEF 14A","4","8-K","8-K","10-K","8-K","8-K","8-K","4","SC 13G/A","SC 13G/A","SC 13G/A","3","4","SC 13G","3","4","4","4","4","4","4","4","4","8-K/A","8-K","8-K","3","8-K","10-Q","8-K","8-K","4","8-K/A","10-Q","8-K","SC 13G","3","3","4","8-K","144","D","8-K","4","4","4","8-K","8-K","ARS","4","4","8-K","10-Q","8-K","8-K","DEF 14A","3/A","4","10-K","8-K","8-K","3","SC 13G","SC 13G","SC 13G","SC 13G","3","8-K","8-K","4","4","4","4","4","4","4","4","4","4","4","4","3/A","4","4","424B4","3","3","3","3","3","3","3","3","3","3","3","3","3","S-8","EFFECT","FWP","CERTNAS","8-A12B","S-1/A","S-1/A","FWP","CORRESP","S-1/A","CORRESP","S-1/A","S-1/A","LETTER","S-1/A","LETTER","S-1"],"size":[9757,24259,291364,2782,6518,9245,4875,6499,13926,7661,7839,5793,6446,280529,73554,1855926,268892,758521,169072,1717976,7727,41713,41319,1693808,106989,5266308,797518,286287,797408,286112,54218,7988,5582,4501,5538,4539,4552,4486,5429,17287,35472,20671,15898,100206,1707661,152899,71911,9210,1711053,175974,296568,38530,14179,32807,29485,34812,10644,318607,137410,1347,566418,4729,25768,70211,1061121,229039,231827,40150,19097,83584,38804,28837,14580,3645,35813,15557,4898,4944,4957,4892,5889,5898,5899,5890,53679,174250,2727329,14157,23462,447171,211850,3055781,18929,306601,388585,246875,10178,21620,22708,4981,3215127,85351,16233,1798490,4931,4872,4865,1277720,50748,1769,4381,4396,1924550,671693,171212,14189,432053,6531,6620,942630,552628,28416,4829,86930,210514,44604,44668,7112,45218,17950,4785,4797,65071,5801,4648,9404,10395,10381,4660,5817,9417,10485,4402,10387,70126,2334978,19446,18764,18961,18717,18746,19550,19701,19515,18783,19035,101049,19044,19784,63097,2111,16878,1744,10860,2462013,352689,12249,7336,3007735,5262,2597107,2234667,49476,3148824,65841,4011535],"isXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isInlineXBRL":[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],"isXBRLNumeric":[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null],"primaryDocument":["d359593d1512b.htm","d355413ds8pos.htm","d353960d8k.htm","xslF25X02/primary_doc.xml","xslF345X03/rrd345473.xml","xslF345X03/rrd345472.xml","xslF345X03/rrd345471.xml","xslF345X03/rrd345470.xml","xslF345X03/rrd345469.xml","xslF345X03/rrd345468.xml","xslF345X03/rrd345467.xml","xslF345X03/rrd345466.xml","xslF345X03/rrd345465.xml","d353400d8k.htm","d352343d8k.htm","d332914d10q.htm","d347973d8k.htm","d344006d10ka.htm","d338381ddefa14a.htm","d323359ddefm14a.htm","filename1.htm","d324907dsc13ga.htm","d324931dsc13ga.htm","d323359dprem14a.htm","d323682ddefa14a.htm","d297444d10k.htm","d309293d8k.htm","d309030d8k.htm","d309293d8k.htm","d309030d8k.htm","v301190_sc13ga.htm","xslF345X03/doc1.xml","xslF345X03/doc1.xml","xslF345X03/doc1.xml","xslF345X03/doc1.xml","xslF345X03/doc1.xml","xslF345X03/doc1.xml","xslF345X03/doc1.xml","xslF345X03/doc1.xml","xslF345X02/doc1.xml","archipelago.htm","d281675d8k.htm","d272958d8ka.htm","v242245_sc13g-a.htm","d84748e10vq.htm","d85594e8vk.htm","d84956e8vk.htm","xslF345X03/primary_doc.xml","d82791e10vq.htm","d84085e8vk.htm","d84036e8vk.htm","d83138e8vk.htm","xslF345X02/doc1.xml","c18712e8vk.htm","c18577e8vk.htm","d82623e8vk.htm","c17655e8vk.htm","d82144e10vq.htm","d82187e8vk.htm","9999999997-11-010061.paper","d81258def14a.htm","xslF345X03/primary_doc.xml","d81235e8vk.htm","d80687e8vk.htm","d80413e10vk.htm","c13904e8vk.htm","d80283e8vk.htm","d80108e8vk.htm","xslF345X03/doc1.xml","c13042sc13gza.htm","d79661asc13gza.htm","d79661bsc13gza.htm","xslF345X02/doc1.xml","xslF345X03/primary_doc.xml","archipelagov2.htm","xslF345X02/doc1.xml","xslF345X03/doc1.xml","xslF345X03/doc1.xml","xslF345X03/doc1.xml","xslF345X03/doc1.xml","xslF345X03/primary_doc.xml","xslF345X03/primary_doc.xml","xslF345X03/primary_doc.xml","xslF345X03/primary_doc.xml","d78776e8vkza.htm","d78751e8vk.htm","d78190e8vk.htm","xslF345X02/doc1.xml","d77856e8vk.htm","d77713e10vq.htm","d77591e8vk.htm","d76135e8vk.htm","xslF345X03/doc4.xml","d75607e8vkza.htm","d75411e10vq.htm","htm_38697.htm","archipelagoinitialthirteeng.txt","xslF345X02/drakard_form3ex.xml","xslF345X02/bolley_form3ex.xml","xslF345X03/doc4.xml","d73810e8vk.htm","mm06-1110_144.htm","xslFormDX01/primary_doc.xml","mm06-1010_8k.htm","xslF345X03/doc4.xml","xslF345X03/doc4.xml","xslF345X03/doc4.xml","d73760e8vk.htm","htm_37962.htm","9999999997-10-011806.paper","xslF345X03/c01361_4x0.xml","xslF345X03/c01362_4x0.xml","d73162e8vk.htm","d72949e10vq.htm","htm_37564.htm","htm_37346.htm","d72389def14a.htm","xslF345X02/c97253_3ax0.xml","xslF345X03/doc4.xml","d71375e10vk.htm","mm03-0210_8k.htm","mm02-2410_8k.htm","xslF345X02/c96427_3x0.xml","d71039csc13g.htm","mv2-1610_13g.htm","d71039asc13g.htm","d71039bsc13g.htm","xslF345X02/doc3.xml","mm01-2910_8k.htm","d70256e8vk.htm","xslF345X03/muzzo_form4ex.xml","xslF345X03/chalmers_form4ex.xml","xslF345X03/pep_form4ex.xml","xslF345X03/tel_form4ex.xml","xslF345X03/powell_form4ex.xml","xslF345X03/muzzo_form4ex.xml","xslF345X03/lowrey_form4ex.xml","xslF345X03/huston_form4ex.xml","xslF345X03/hall_form4ex.xml","xslF345X03/duquette_form4ex.xml","xslF345X03/chalmers_form4ex.xml","xslF345X03/walburg_form4ex.xml","xslF345X02/walburg_form3aex.xml","xslF345X03/mcewen_form4ex.xml","xslF345X03/pep_form4ex.xml","d68999b4e424b4.htm","xslF345X02/chalmers_form3ex.xml","xslF345X02/wilde_form3ex.xml","xslF345X02/tel_form3ex.xml","xslF345X02/powell_form3ex.xml","xslF345X02/phillips_form3ex.xml","xslF345X02/muzzo_form3ex.xml","xslF345X02/lowrey_form3ex.xml","xslF345X02/huston_form3ex.xml","xslF345X02/hall_form3ex.xml","xslF345X02/duquette_form3ex.xml","xslF345X02/pep_form3ex.xml","xslF345X02/walburg_form3ex.xml","xslF345X02/mcewen_form3ex.xml","d70196sv8.htm","xslEFFECTX01/primary_doc.xml","d68999fwfwp.htm","9999999997-09-026684.paper","d70190e8va12b.htm","d68999a6sv1za.htm","d68999a5sv1za.htm","d68999wpfwp.htm","filename1.htm","d68999a4sv1za.htm","filename1.htm","d68999a3sv1za.htm","d68999a2sv1za.htm","filename1.pdf","d68999a1sv1za.htm","filename1.pdf","d68999sv1.htm"],"primaryDocDescription":["FORM 15","POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8","FORM 8-K","","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 8-K","FORM 8-K","FORM 10-Q","FORM 8-K","FORM 10-K/A","SOLICITING MATERIAL","DEFINITIVE PROXY STATEMENT","","SCHEDULE 13G AMENDMENT NO. 2","SCHEDULE 13G AMENDMENT NO. 2","SCHEDULE 14A","SOLICITING MATERIAL","FORM 10-K","FORM 8-K","FORM 8-K","FORM 8-K","FORM 8-K","","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 4","FORM 3","ARCHIPELAGO LEARNING, INC.","FORM 8-K","FORM 8-K/A","","FORM 10-Q","FORM 8-K","FORM 8-K","PRIMARY DOCUMENT","FORM 10-Q","FORM 8-K","FORM 8-K","FORM 8-K","FORM 3","FORM 8-K","FORM 8-K","FORM 8-K","FORM 8-K","FORM 10-Q","FORM 8-K","AUTO-GENERATED PAPER DOCUMENT","DEF 14A","PRIMARY DOCUMENT","FORM 8-K","FORM 8-K","FORM 10-K","FORM 8-K","FORM 8-K","FORM 8-K","FORM 4","SCHEDULE 13G/A","SC 13G/A","SC 13G/A","FORM 3","PRIMARY DOCUMENT","ARCHIPELAGO LEARNING, INC.","FORM 3","FORM 4","FORM 4","FORM 4","FORM 4","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","PRIMARY DOCUMENT","FORM 8-K/A","FORM 8-K","FORM 8-K","FORM 3","FORM 8-K","FORM 10-Q","FORM 8-K","FORM 8-K","FORM 4 SUBMISSION","FORM 8-K/A","FORM 10-Q","LIVE FILING","ARCHIPELAGO INITIAL13G-080310","","","FORM 4 SUBMISSION","FORM 8-K","","","FORM 8-K","FORM 4 SUBMISSION","FORM 4 SUBMISSION","FORM 4 SUBMISSION","FORM 8-K","LIVE FILING","AUTO-GENERATED PAPER DOCUMENT","MAIN DOCUMENT DESCRIPTION","MAIN DOCUMENT DESCRIPTION","FORM 8-K","FORM 10-Q","LIVE FILING","LIVE FILING","DEF 14A","MAIN DOCUMENT DESCRIPTION","FORM 4 SUBMISSION","FORM 10-K","","","MAIN DOCUMENT DESCRIPTION","SC 13G","","SC 13G","SC 13G","FORM 3 SUBMISSION","","FORM 8-K","","","","","","","","","","","","","","","","424B4","","","","","","","","","","","","","","FORM S-8","","FWP","AUTO-GENERATED PAPER DOCUMENT","FORM 8-A12B","FORM S-1/A","FORM S-1/A","FWP","","FORM S-1/A","","FORM S-1/A","S-1/A","","AMENDMENT TO FORM S-1","","FORM S-1"]},"files":[]}}