Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 16,589us-gaap_NetIncomeLoss	$ 10,479us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	6,755us-gaap_Depreciation	5,897us-gaap_Depreciation
Amortization of capitalized software costs	10,190	9,353
Amortization of other intangibles	5,371us-gaap_AmortizationOfIntangibleAssets	6,340us-gaap_AmortizationOfIntangibleAssets
Provision for bad debts	38us-gaap_ProvisionForDoubtfulAccounts	2,791us-gaap_ProvisionForDoubtfulAccounts
Provision for inventory obsolescence	71	0
Share-based compensation	2,627us-gaap_ShareBasedCompensation	1,832us-gaap_ShareBasedCompensation
Deferred income taxes	(20)us-gaap_DeferredIncomeTaxExpenseBenefit	896us-gaap_DeferredIncomeTaxExpenseBenefit
Excess tax benefit from share-based compensation	0	(62)
Change in fair value of contingent consideration	1,533	(384)
Impairment of goodwill and other assets	0us-gaap_AssetImpairmentCharges	25,971us-gaap_AssetImpairmentCharges
Loss on disposal of equipment and improvements	12	0
Changes in assets and liabilities, net of amounts acquired:
Accounts receivable	8,779	23,451
Inventories	98us-gaap_IncreaseDecreaseInInventories	(174)us-gaap_IncreaseDecreaseInInventories
Income taxes receivable	4,975	(15,270)
Other current assets	(221)	3,579
Other assets	(785)qsii_IncreaseDecreaseInOtherAssets	(1,444)qsii_IncreaseDecreaseInOtherAssets
Accounts payable	(1,084)	(6,842)
Deferred revenue	(3,897)	2,585
Accrued compensation and related benefits	3,635	1,777
Income taxes payable	(107)	(701)
Other current liabilities	4,152	454
Deferred compensation	668	748
Other noncurrent liabilities	(673)	295
Net cash provided by operating activities	58,706	71,571
Cash flows from investing activities:
Additions to capitalized software costs	(9,535)us-gaap_PaymentsToAcquireSoftware	(18,914)us-gaap_PaymentsToAcquireSoftware
Additions to equipment and improvements	(5,444)	(7,448)
Proceeds from sales and maturities of marketable securities	10,352	12,990
Purchases of marketable securities	(10,995)	(14,091)
Purchase of Mirth	0	(35,033)
Net cash used in investing activities	(15,622)	(62,496)
Cash flows from financing activities:
Excess tax benefit from share-based compensation	0	62
Proceeds from exercise of stock options	170	2,200
Dividends paid	(32,073)us-gaap_PaymentsOfDividendsCommonStock	(31,515)us-gaap_PaymentsOfDividendsCommonStock
Payment of contingent consideration related to acquisitions	(686)	(3,720)
Net cash used in financing activities	(32,589)	(32,973)
Net (decrease) increase in cash and cash equivalents	10,495	(23,898)
Cash and cash equivalents at beginning of period	103,145	105,999
Cash and cash equivalents at end of period	113,640	82,101
Supplemental disclosures of cash flow information:
Cash paid during the period for income taxes, net of refunds	1,523us-gaap_IncomeTaxesPaidNet	20,443us-gaap_IncomeTaxesPaidNet
Cash paid	0	35,033
Mirth [Member]
Cash flows from investing activities:
Purchase of Mirth		(35,033)
Supplemental disclosures of cash flow information:
Fair value of assets acquired		62,771
Cash paid		35,033
Common stock issued at fair value		7,882
Fair value of contingent consideration		13,307
Liabilities assumed		$ 6,549

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Cash outflow for purchase of trading, available-for-sale securities and held-to-maturity securities.

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