Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	$ 15,680	$ 42,724	$ 75,657
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	8,069	6,928	5,195
Amortization of capitalized software costs	12,338	9,668	8,254
Amortization of other intangibles	8,330	7,559	4,501
Provision for bad debts	1,467	6,885	5,715
Provision (recovery) for inventory obsolescence	0	193	43
Share-based compensation	2,490	2,327	3,321
Deferred income tax benefit	(3,984)	(9,565)	(8,025)
Excess tax benefit from share-based compensation	(183)	157	(4,145)
Change in fair value of contingent consideration	101	1,272	0
Impairment of goodwill and other assets	25,971	17,400	0
Loss (gain) on disposal of equipment and improvements	192	0	73
Changes in assets and liabilities, net of amounts acquired:
Accounts receivable	40,548	(7,988)	(10,389)
Inventories	(81)	339	(1,024)
Income taxes receivable	(8,366)	2,628	(2,628)
Other current assets	4,074	(4,073)	(2,955)
Other assets	(1,662)	(2,777)	(841)
Accounts payable	(4,170)	6,223	(2,184)
Deferred revenue	1,036	(17,993)	5,993
Accrued compensation and related benefits	4,038	45	1,623
Income taxes payable	(861)	1,082	615
Other current liabilities	(2,876)	9,079	(1,910)
Deferred compensation	1,000	312	1,009
Other noncurrent liabilities	989	(4,384)	207
Net cash provided by operating activities	104,140	68,041	78,105
Cash flows from investing activities:
Additions to capitalized software costs	(20,784)	(29,455)	(13,098)
Additions to equipment and improvements	(7,934)	(9,969)	(10,323)
Proceeds for disposal of equipment and improvements	0	0	11
Purchase of marketable securities	0	(7,100)	0
Payment of contingent consideration related to acquisitions	(3,423)	(2,353)	(1,319)
Net cash used in investing activities	(63,751)	(53,630)	(34,904)
Cash flows from financing activities:
Excess tax benefit from share-based compensation	183	84	4,145
Proceeds from exercise of stock options	2,200	948	12,789
Dividends paid	(42,203)	(41,535)	(40,989)
Net cash used in financing activities	(43,243)	(42,856)	(25,374)
Net increase in cash and cash equivalents	(2,854)	(28,445)	17,827
Cash and cash equivalents at beginning of period	105,999	134,444
Cash and cash equivalents at end of period	103,145	105,999	134,444
Supplemental disclosures of cash flow information:
Cash paid during the period for income taxes, net of refunds	20,443	31,656	50,605
Non-cash investing activities:
Tenant improvement allowance received from landlord	0	965
Common stock issued at fair value for Opus earnout settlement	0	0	11,888
Issuance of stock options in connection with the acquisition of PMP	0	3,000
Effective November 14, 2011, July 26, 2011, April 29, 2011, February 10, 2010, August 12, 2009, the company acquired ViaTrack, CQI Solutions, IntraNexus, Opus and Sphere respectively in a transaction summarized as follows:
Common Stock issued at fair value	0	0	(1,068)
ViaTrack [Member]
Cash flows from investing activities:
Cash acquired from Acquisition	0	0	10
Purchase of CQI solutions	0	0	(5,710)
Payment for acquiring businesses	0	0	(5,710)
Effective November 14, 2011, July 26, 2011, April 29, 2011, February 10, 2010, August 12, 2009, the company acquired ViaTrack, CQI Solutions, IntraNexus, Opus and Sphere respectively in a transaction summarized as follows:
Fair value of assets acquired	0	0	11,048
Purchase of CQI solutions	0	0	(5,710)
Purchase price holdback	0	0	(1,187)
Fair value of contingent consideration	0	0	(2,958)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	0	0	125
CQI Solutions [Member]
Cash flows from investing activities:
Cash acquired from Acquisition	0	0	222
Purchase of CQI solutions	0	0	(2,737)
Effective November 14, 2011, July 26, 2011, April 29, 2011, February 10, 2010, August 12, 2009, the company acquired ViaTrack, CQI Solutions, IntraNexus, Opus and Sphere respectively in a transaction summarized as follows:
Fair value of assets acquired	0	0	11,417
Purchase of CQI solutions	0	0	(2,737)
Common Stock issued at fair value	0	0	(2,864)
Purchase price holdback	0	0	600
Fair value of contingent consideration	0	0	(2,346)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	0	0	2,870
IntraNexus [Member]
Cash flows from investing activities:
Purchase of CQI solutions	0	0	(3,279)
Payment for acquiring businesses	0	0	(3,279)
Effective November 14, 2011, July 26, 2011, April 29, 2011, February 10, 2010, August 12, 2009, the company acquired ViaTrack, CQI Solutions, IntraNexus, Opus and Sphere respectively in a transaction summarized as follows:
Fair value of assets acquired	0	0	4,524
Purchase of CQI solutions	0	0	(3,279)
Purchase price holdback	0	0	125
Fair value of contingent consideration	0	0	(800)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	0	0	320
Poseidon [Member]
Cash flows from investing activities:
Purchase of CQI solutions	0	(2,033)	0
Payment for acquiring businesses	0	(2,033)	0
Effective November 14, 2011, July 26, 2011, April 29, 2011, February 10, 2010, August 12, 2009, the company acquired ViaTrack, CQI Solutions, IntraNexus, Opus and Sphere respectively in a transaction summarized as follows:
Fair value of assets acquired	0	2,551	0
Purchase of CQI solutions	0	(2,033)	0
Purchase price holdback	0	(500)	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	0	18	0
Matrix [Member]
Cash flows from investing activities:
Purchase of CQI solutions	0	(5,073)	0
Payment for acquiring businesses	0	(5,073)	0
Effective November 14, 2011, July 26, 2011, April 29, 2011, February 10, 2010, August 12, 2009, the company acquired ViaTrack, CQI Solutions, IntraNexus, Opus and Sphere respectively in a transaction summarized as follows:
Fair value of assets acquired	0	14,587	0
Purchase of CQI solutions	0	(5,073)	0
Common Stock issued at fair value	0	(3,953)	0
Purchase price holdback	0	(853)	0
Fair value of contingent consideration	0	(2,862)	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	0	746
Business Acquisition, Cost of Acquired Entity, Non-compete Agreement	0	(1,100)	0
Mirth [Member]
Cash flows from investing activities:
Purchase of CQI solutions	(35,033)	0
Payment for acquiring businesses	(35,033)	0	0
Effective November 14, 2011, July 26, 2011, April 29, 2011, February 10, 2010, August 12, 2009, the company acquired ViaTrack, CQI Solutions, IntraNexus, Opus and Sphere respectively in a transaction summarized as follows:
Fair value of assets acquired	62,787	0
Purchase of CQI solutions	(35,033)	0
Common Stock issued at fair value	(7,882)	0
Fair value of contingent consideration	(13,307)	0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	6,565	0	0
Liabilities assumed	$ 56,222