Operating Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2013		Mar. 31, 2012		Mar. 31, 2011
Segment Operating Data
Revenue	$ 111,295	$ 114,510	$ 116,128	$ 118,296	$ 108,994	$ 112,765	$ 107,634	$ 100,442	$ 460,229		$ 429,835		$ 353,363
Operating income	(2,135)	23,384	24,344	23,507	23,298	32,515	31,567	28,819	69,100		116,199		94,092
QSI Dental Division [Member]
Segment Operating Data
Revenue									19,990		19,596		19,966
Operating income									3,020		3,352		4,672
NextGen Division [Member]
Segment Operating Data
Revenue									344,315		325,467		266,546
Operating income									120,974		127,032		104,391
Hospital Solutions Division [Member]
Segment Operating Data
Revenue									31,413		34,463		17,898
Operating income									(4,354)		10,417		5,362
RCM Services Division [Member]
Segment Operating Data
Revenue									64,511		50,309		48,953
Operating income									8,180		5,835		4,235
Unallocated corporate expense [Member]
Segment Operating Data
Operating income									$ (58,720)	[1]	$ (30,437)	[1]	$ (24,568)	[1]

[1] Unallocated corporate expense includes eliminations relating to QSIH revenues and related expenses included in the results ofoperating segments. For the years ended March 31, 2013