Supplemental Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Condensed Income Statements [Line Items]
Solutions revenue	$ 307,586	$ 287,946	$ 942,362	$ 810,162
Postage revenue	73,880	89,839	234,205	268,119
Total revenue	381,466	377,785	1,176,567	1,078,281
Costs and expenses:
Cost of operations (exclusive of depreciation and amortization below)	138,685	129,385	430,216	371,859
Development and engineering	16,494	11,651	46,015	32,600
Sales, marketing, general and administrative	69,513	56,719	210,377	151,955
Customer postage	73,880	89,839	234,205	268,119
Depreciation and amortization	65,899	85,817	188,882	183,446
Accretion	1,721	6,458	10,645	15,254
Impairment of long-lived assets	20	219	251	1,180
Operating income (loss)	15,254	(2,303)	55,976	53,868
Interest expense, net	46,534	45,541	139,720	121,685
Contingent consideration		(4,660)		(4,825)
Income (loss) before income tax provision (benefit)	(31,280)	(43,184)	(83,744)	(62,992)
Income tax provision (benefit)	(33,765)	(10,278)	(57,438)	(32,264)
Net income (loss)	2,485	(32,906)	(26,306)	(30,728)
Consolidating Adjustments [Member]
Costs and expenses:
Equity in earnings of consolidated subsidiaries	13,956	7,126	18,322	47,865
Income (loss) before income tax provision (benefit)	(13,956)	(7,126)	(18,322)	(47,865)
Net income (loss)	(13,956)	(7,126)	(18,322)	(47,865)
Change Healthcare Holdings, Inc. [Member]
Costs and expenses:
Cost of operations (exclusive of depreciation and amortization below)		15		15
Sales, marketing, general and administrative	1,043	1,974	7,403	7,828
Depreciation and amortization	301	33,133	903	37,633
Accretion	1,721	6,458	10,645	15,254
Operating income (loss)	(3,065)	(41,580)	(18,951)	(60,730)
Equity in earnings of consolidated subsidiaries	(13,956)	(7,126)	(18,322)	(47,865)
Interest expense, net	20,773	28,108	62,470	74,697
Income (loss) before income tax provision (benefit)	(9,882)	(62,562)	(63,099)	(87,562)
Income tax provision (benefit)	(12,367)	(29,656)	(36,793)	(56,834)
Net income (loss)	2,485	(32,906)	(26,306)	(30,728)
Guarantor Subsidiaries [Member]
Condensed Income Statements [Line Items]
Solutions revenue	307,586	287,946	942,362	810,162
Postage revenue	73,880	89,839	234,205	268,119
Total revenue	381,466	377,785	1,176,567	1,078,281
Costs and expenses:
Cost of operations (exclusive of depreciation and amortization below)	138,685	129,370	430,216	371,844
Development and engineering	16,494	11,651	46,015	32,600
Sales, marketing, general and administrative	68,470	54,745	202,974	144,127
Customer postage	73,880	89,839	234,205	268,119
Depreciation and amortization	65,598	52,684	187,979	145,813
Impairment of long-lived assets	20	219	251	1,180
Operating income (loss)	18,319	39,277	74,927	114,598
Interest expense, net	25,761	17,433	77,250	46,988
Contingent consideration		(4,660)		(4,825)
Income (loss) before income tax provision (benefit)	(7,442)	26,504	(2,323)	72,435
Income tax provision (benefit)	(21,398)	19,378	(20,645)	24,570
Net income (loss)	$ 13,956	$ 7,126	$ 18,322	$ 47,865