Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill in Total and for Each Reporting Unit (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Carrying value, beginning balance		$ 48,900	$ 63,410
Impairment of goodwill		0	(14,510)	(69,158)
Additions (a)		1,955
Disposition of HIM		(4,887)
Carrying value, ending balance	63,410	45,968	48,900	63,410
Technology [Member]
Goodwill [Line Items]
Carrying value, beginning balance		17,034	17,034
Impairment of goodwill			0
Additions (a)		0
Disposition of HIM		0
Carrying value, ending balance		17,034	17,034
Finance and Accounting [Member]
Goodwill [Line Items]
Carrying value, beginning balance		8,006	8,006
Impairment of goodwill			0
Additions (a)		0
Disposition of HIM		0
Carrying value, ending balance		8,006	8,006
Health Information Management [Member]
Goodwill [Line Items]
Carrying value, beginning balance		4,887	4,887
Impairment of goodwill			0
Additions (a)		0
Disposition of HIM		(4,887)
Carrying value, ending balance		0	4,887
Government Solutions [Member]
Goodwill [Line Items]
Carrying value, beginning balance		18,973	33,483
Impairment of goodwill	(3,900)		(14,510)	(69,158)
Additions (a)		1,955
Disposition of HIM		0
Carrying value, ending balance	$ 33,483	$ 20,928	$ 18,973	$ 33,483