{"cik":1289945,"taxonomy":"us-gaap","tag":"LongTermDebt","label":"Long-term Debt","description":"Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.","entityName":"SPOK HOLDINGS, INC.","units":{"USD":[{"end":"2010-12-31","val":0,"accn":"0000950123-11-069704","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-07-28"},{"end":"2010-12-31","val":0,"accn":"0001193125-11-284146","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-10-27","frame":"CY2010Q4I"},{"end":"2011-06-30","val":25947000,"accn":"0000950123-11-069704","fy":2011,"fp":"Q2","form":"10-Q","filed":"2011-07-28","frame":"CY2011Q2I"},{"end":"2011-09-30","val":17000000,"accn":"0001193125-11-284146","fy":2011,"fp":"Q3","form":"10-Q","filed":"2011-10-27","frame":"CY2011Q3I"},{"end":"2011-12-31","val":28250000,"accn":"0001193125-12-325863","fy":2012,"fp":"Q2","form":"10-Q","filed":"2012-07-31"},{"end":"2011-12-31","val":28250000,"accn":"0001193125-12-449429","fy":2012,"fp":"Q3","form":"10-Q","filed":"2012-11-02","frame":"CY2011Q4I"},{"end":"2013-12-31","val":0,"accn":"0001289945-14-000012","fy":2013,"fp":"FY","form":"10-K","filed":"2014-03-11","frame":"CY2013Q4I"},{"end":"2014-03-31","val":0,"accn":"0001289945-14-000019","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-01","frame":"CY2014Q1I"},{"end":"2014-06-30","val":0,"accn":"0001289945-14-000033","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-07-31","frame":"CY2014Q2I"},{"end":"2014-09-30","val":0,"accn":"0001289945-14-000045","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-10-30","frame":"CY2014Q3I"},{"end":"2014-12-31","val":0,"accn":"0001289945-15-000007","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-05","frame":"CY2014Q4I"},{"end":"2015-03-31","val":0,"accn":"0001289945-15-000020","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-04-30","frame":"CY2015Q1I"},{"end":"2015-12-31","val":0,"accn":"0001289945-16-000062","fy":2015,"fp":"FY","form":"10-K","filed":"2016-02-25","frame":"CY2015Q4I"}]}}