Operating Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2012	Dec. 31, 2011
Segment Operating Data
Revenue	$ 114,510		$ 112,765		$ 348,934	$ 320,841
Operating income	23,384		32,515		71,235	92,901
QSI Dental Division [Member]
Segment Operating Data
Revenue	5,088		4,863		14,886	14,469
Operating income	1,265		620		2,413	2,518
NextGen Division [Member]
Segment Operating Data
Revenue	85,757		85,900		259,277	243,015
Operating income	30,906		35,240		93,643	98,875
Hospital Solutions Division [Member]
Segment Operating Data
Revenue	7,365		9,928		26,903	25,671
Operating income	(1,334)		3,406		(152)	8,919
RCM Services Division [Member]
Segment Operating Data
Revenue	16,300		12,074		47,868	37,686
Operating income	2,090		1,238		5,732	4,377
Unallocated corporate expense [Member]
Segment Operating Data
Operating income	$ (9,543)	[1]	$ (7,989)	[1]	$ (30,401)	$ (21,788)

[1] Unallocated corporate expense includes eliminations relating to QSIH revenues and related expenses included in the results of operating segments. For the nine months ended December 31, 2012 and 2011, eliminations were not significant.