Summary of the Activity Under the Plan (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Option Units, Granted	0	0	0
Option Units, Exercised	6,000	317,000	289,000
Options Outstanding, options forfeited	(434,000)	(767,000)	(606,000)
Option Units, Outstanding – December 31, 2016	1,902,267	2,343,000	3,427,000	4,322,000
Option Units, Exercisable – December 31, 2016	1,431,288	1,282,000	1,393,000	1,025,000
Weighted Average Exercise Price, Granted	$ 0.00	$ 0.00	$ 0.00
Weighted Average Exercise Price, Exercised	14.01	11.44	11.88
Weighted Average Exercise Price, Forfeited	15.51	15.89	15.03
Weighted Average Exercise Price, Outstanding – December 31, 2016	13.95	14.24	14.35	$ 14.28
Weighted Average Exercise Price, Exercisable – December 31, 2016	$ 13.98	$ 14.52	$ 14.97	$ 15.52
Netsmart [Member] | Nathan Holding LLC 2016 Unit Option Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Option Units, Granted	89,889,000
Option Units, Called	0
Option Units, Exercised	0
Options Outstanding, options forfeited	(2,316,000)
Option Units, Outstanding – December 31, 2016	87,573,000
Option Units, Exercisable – December 31, 2016	0
Weighted Average Exercise Price, Granted	$ 1.00
Weighted Average Exercise Price, Called	0.00
Weighted Average Exercise Price, Exercised	0.00
Weighted Average Exercise Price, Forfeited	1.00
Weighted Average Exercise Price, Outstanding – December 31, 2016	1.00
Weighted Average Exercise Price, Exercisable – December 31, 2016	$ 0.00