Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net (loss) income	$ (13,208)	$ 22,619	$ 18,442
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization expense	17,209	11,658	8,348
Stock-based compensation expense	7,940	6,616	5,580
(Benefit) provision for deferred income taxes	(10,083)	(3,056)	1,888
Impairment of long-lived assets	0	0	150
Excess tax benefit from stock-based compensation	(19)	(559)	(893)
Change in the fair value of the liability related to the LNX earn-out	0	(4,938)	0
Loss on sale of building	1,091	0	0
Other non-cash items	(757)	(555)	(898)
Changes in operating assets and liabilities, net of effects of businesses acquired:
Accounts receivable, unbilled receivable, and cost in excess of billings	4,760	6,755	257
Inventory	453	(7,267)	2,514
Prepaid income taxes	3,197	3,514	1,567
Prepaid expenses and other current assets	(807)	(816)	(2,120)
Other non-current assets	1,055	646	(677)
Accounts payable and accrued expenses	(13,094)	(1,092)	931
Deferred revenues and customer advances	516	(1,850)	(3,696)
Income taxes payable	(422)	820	21
Other non-current liabilities	298	(626)	60
Net cash (used in) provided by operating activities	(1,871)	31,869	31,474
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(67,721)	(71,044)	(29,508)
Sales and maturities of marketable securities	0	0	18,025
Purchases of property and equipment	(3,880)	(9,427)	(8,825)
Proceeds from sale of building	775	0	0
Payments for acquired intangible assets	0	(50)	(2,375)
Increase in other investing activities	(265)	(281)	0
Net cash used in investing activities	(71,091)	(80,802)	(22,683)
Cash flows from financing activities:
Proceeds from follow-on public stock offering, net	0	0	93,605
Proceeds from employee stock plans	1,251	1,631	3,690
Excess tax benefit from stock-based compensation	19	559	893
Payments of acquired debt	(6,575)	0	0
Payments of deferred financing costs	(771)	0	(31)
Payments of deferred offering costs	0	(30)	(59)
Decrease in restricted cash	3,000	0	0
Payments of capital lease obligations	(593)	(185)	(298)
Net cash (used in) provided by financing activities	(3,669)	1,975	97,800
Effect of exchange rate changes on cash and cash equivalents	(207)	47	43
Net (decrease) increase in cash and cash equivalents	(76,838)	(46,911)	106,634
Cash and cash equivalents at beginning of year	115,964	162,875	56,241
Cash and cash equivalents at end of year	39,126	115,964	162,875
Cash paid during the period for:
Interest	39	40	45
Income taxes	(3,313)	8,686	4,397
Supplemental disclosures-non-cash activities:
Issuance of restricted stock awards to employees	12,560	8,367	9,204
Share-based business combination consideration	513	0	0
Acquisition of intangible assets	0	0	495
Capital lease	$ 249	$ 41	$ 251