{"cik":"0000310327","entityType":"other","sic":"","sicDescription":"","ownerOrg":null,"insiderTransactionForOwnerExists":0,"insiderTransactionForIssuerExists":0,"name":"FIRST TRUST OF INSURED MUNICIPAL BONDS SERIES 25","tickers":[],"exchanges":[],"ein":"000000000","lei":null,"description":"","website":"","investorWebsite":"","category":"","fiscalYearEnd":"1231","stateOfIncorporation":"IL","stateOfIncorporationDescription":"IL","addresses":{"mailing":{"street1":null,"street2":null,"city":null,"stateOrCountry":null,"zipCode":null,"stateOrCountryDescription":null,"isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null},"business":{"street1":"1001 WARRENVILLE ROAD","street2":"C/O NIKE SECURITIES LP","city":"LISLE","stateOrCountry":"IL","zipCode":"60532","stateOrCountryDescription":"IL","isForeignLocation":null,"foreignStateTerritory":null,"country":null,"countryCode":null}},"phone":null,"flags":"","formerNames":[],"filings":{"recent":{"accessionNumber":["0000875626-05-000146","0000875626-04-000758","0000875626-04-000553","0000875626-03-000588","0000875626-03-000546","0000875626-03-000361","0000875626-02-001277","0000875626-02-000676","0000875626-02-000649","0000875626-02-000405","0000875626-01-500231","0000875626-01-500148","0000875626-01-000363","0000875626-00-000593","0000875626-00-000554","0000875626-00-000373","0000875626-99-000559","0000875626-99-000518","0000875626-99-000320","0000875626-98-000464","0000875626-98-000411","0000875626-98-000264","0000875626-97-000345","0000875626-97-000101","0000875626-96-000303","0000875626-95-000276","0000875626-94-000339"],"filingDate":["2005-01-27","2004-04-30","2004-03-26","2003-05-01","2003-04-30","2003-03-28","2002-07-01","2002-05-01","2002-04-30","2002-03-27","2001-05-04","2001-04-30","2001-03-26","2000-05-01","2000-04-28","2000-03-24","1999-05-07","1999-04-30","1999-03-26","1998-05-04","1998-04-30","1998-03-18","1997-04-30","1997-02-20","1996-05-01","1995-04-27","1994-04-29"],"reportDate":["2004-04-30","","2003-12-31","","","2002-12-31","","","","2001-12-31","","","2000-12-31","","","1999-12-31","","","1998-12-31","","","1997-12-31","","1996-12-31","","",""],"acceptanceDateTime":["2005-01-27T16:48:17.000Z","2004-04-30T14:30:03.000Z","2004-03-26T18:22:10.000Z","2003-05-01T14:32:10.000Z","2003-04-30T15:44:46.000Z","2003-03-28T16:35:53.000Z","2002-07-01T19:41:49.000Z","2002-05-01T14:44:37.000Z","2002-04-30T16:40:00.000Z","2002-03-27T05:00:00.000Z","2001-05-04T04:00:00.000Z","2001-04-30T04:00:00.000Z","2001-03-26T05:00:00.000Z","2000-05-01T04:00:00.000Z","2000-04-28T04:00:00.000Z","2000-03-24T05:00:00.000Z","1999-05-07T04:00:00.000Z","1999-04-30T04:00:00.000Z","1999-03-26T05:00:00.000Z","1998-05-04T04:00:00.000Z","1998-04-30T04:00:00.000Z","1998-03-18T05:00:00.000Z","1997-04-30T04:00:00.000Z","1997-02-20T05:00:00.000Z","1996-05-01T04:00:00.000Z","1995-04-27T04:00:00.000Z","1994-04-29T04:00:00.000Z"],"act":["33","","","","","","","","","","","","","","","","","","","","","","","","","",""],"form":["24F-2NT","485BPOS","24F-2NT","497J","485BPOS","24F-2NT","497","497J","485BPOS","24F-2NT","497J","485BPOS","24F-2NT","497J","485BPOS","24F-2NT","497J","485BPOS","24F-2NT","497J","485BPOS","24F-2NT","485BPOS","24F-2NT","485BPOS","485BPOS","485BPOS"],"fileNumber":["002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692","002-58692"],"filmNumber":["05552625","04767802","04692129","03675222","03671432","03623352","02693618","02628919","02626340","02587648","1622656","1615061","1578771","614752","612301","577545","99613254","99606052","99573721","98609476","98605704","98567961","97591889","97540147","96554159","95531755","94525105"],"items":["","","","","","","","","","","","","","","","","","","","","","","","","","",""],"core_type":["24F-2NT","485BPOS","24F-2NT","497J","485BPOS","24F-2NT","497","497J","485BPOS","24F-2NT","497J","485BPOS","24F-2NT","497J","485BPOS","24F-2NT","497J","485BPOS","24F-2NT","497J","485BPOS","24F-2NT","485BPOS","24F-2NT","485BPOS","485BPOS","485BPOS"],"size":[4985,6568,4934,2427,211288,4960,2019,2347,201340,4883,2404,198705,4943,2384,197584,4928,2615,201449,4951,2625,205436,4987,210498,5331,209672,218133,209903],"isXBRL":[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],"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],"primaryDocument":["nt25.txt","b485pos.txt","nt25.txt","j497.txt","b485pos.txt","nat25.txt","cpna.txt","j497.txt","b485pos.txt","nat25.txt","j497.txt","b485pos.txt","0001.txt","","","","","","","","","","","","","",""],"primaryDocDescription":["01/05 24F-2NT FOR NT25","POST-EFFECTIVE AMENDMENT","03/04 24F-2NT FOR NT25","DEFINITIVE LETTER","POST-EFFECTIVE AMENDMENT","03/28 24F-2NT FOR NAT SER 25","AMENDMENT TO PROSPECTUS","DEFINITIVE LETTER","POST-EFFECTIVE AMENDMENT","03/27  24F-2NT FOR NAT SER 25","DEFINITIVE LETTER","POST-EFFECTIVE AMENDMENT","03/26  24F-2NT FOR NAT SER 25","DEFINITIVE LETTER","POST-EFFECTIVE AMENDMENT","03/24  2F-2NT FOR NAT SER 25","DEFINITIVE LETTER","POST-EFFECTIVE AMENDMENT","03/26 24F-2NT FOR NATIONAL 25","DEFINITIVE LETTER","POST-EFFECTIVE AMENDMENT","3/18 24F-2NT FOR NATIONAL SERIES 025","POST-EFFECTIVE AMENDMENT","2/28 24F-2NT FOR NATIONAL SERIES 25","POST-EFFECTIVE AMENDMENT","POST-EFFECTIVE AMENDMENT","POST-EFFECTIVE AMENDMENT"]},"files":[]}}