Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net (loss) income	$ (11,196)	$ 16,943
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization expense	12,844	8,381
Stock-based compensation expense	6,265	5,194
(Benefit) provision for deferred income taxes	(6,468)	1,354
Excess tax benefit from stock-based compensation	(18)	(487)
Other non-cash items	(471)	(614)
Changes in operating assets and liabilities, net of effects of businesses acquired:
Accounts receivable, unbilled receivable, and cost in excess of billings	5,316	6,404
Inventory	(856)	(3,215)
Prepaid income taxes	406	992
Prepaid expenses and other current assets	1,747	485
Other non-current assets	763	652
Accounts payable and accrued expenses	(14,596)	(726)
Deferred revenues and customer advances	(575)	(2,594)
Income taxes payable	(295)	460
Other non-current liabilities	441	(5,542)
Net cash (used in) provided by operating activities	(6,693)	27,687
Cash flows from investing activities:
Acquisition of businesses, net of cash acquired	(67,721)	(70,370)
Purchases of property and equipment	(2,259)	(6,438)
Payments for acquired intangible assets		(50)
Increase in other investing activities	(265)	(281)
Net cash used in investing activities	(70,245)	(77,139)
Cash flows from financing activities:
Proceeds from employee stock plans	743	1,031
Excess tax benefits from stock-based compensation	18	487
Payments of deferred financing and offering costs	(771)	(30)
Payments of acquired debt	(6,575)
Decrease in restricted cash	3,000
Payments of capital lease obligations	(365)	(137)
Net cash (used in) provided by financing activities	(3,950)	1,351
Effect of exchange rate changes on cash and cash equivalents	69	71
Net decrease in cash and cash equivalents	(80,819)	(48,030)
Cash and cash equivalents at beginning of period	115,964	162,875
Cash and cash equivalents at end of period	35,145	114,845
Cash paid (received) during the period for:
Interest	30	26
Income taxes	(1,827)	6,621
Supplemental disclosures-non-cash activities:
Issuance of restricted stock awards to employees	12,496	8,306
Micronetics
Changes in operating assets and liabilities, net of effects of businesses acquired:
Inventory	(12,899)
Supplemental disclosures-non-cash activities:
Unvested stock options assumed from Micronetics	$ 513