Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Sep. 27, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income	$ 19,247	$ 7,479
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	11,381	11,546
Stock-based compensation expense	5,659	4,679
Provision (benefit) for deferred income taxes	238	(381)
Other non-cash items	548	1,222
Changes in operating assets and liabilities, net of effects of businesses acquired:
Accounts receivable, unbilled receivable, and cost in excess of billings	2,230	(5,891)
Inventory	298	(4,553)
Prepaid income taxes	(3,087)	(2,977)
Prepaid expenses and other current assets	(877)	68
Other non-current assets	(64)	88
Accounts payable and accrued expenses	(6,275)	(2,025)
Deferred revenues and customer advances	(826)	8,828
Income taxes payable	(2,972)	1,873
Other non-current liabilities	(1,190)	73
Net cash provided by operating activities	24,310	20,029
Cash flows from investing activities:
Acquisition of business, net of cash acquired	(96,502)	(46,273)
Purchases of property and equipment	(9,595)	(3,727)
Net cash used in investing activities	(106,097)	(50,000)
Cash flows from financing activities:
Proceeds from employee stock plans	3	0
Purchase and retirement of common stock	(14,562)	(6,812)
Borrowings under credit facilities	0	45,000
Termination of interest rate swap	0	(1,851)
Net cash (used in) provided by financing activities	(14,559)	36,337
Effect of exchange rate changes on cash and cash equivalents	(287)	(18)
Net (decrease) increase in cash and cash equivalents	(96,633)	6,348
Cash and cash equivalents at beginning of period	257,932	66,521
Cash and cash equivalents at end of period	161,299	72,869
Cash paid during the period for:
Interest	0	3,442
Income taxes	$ 3,647	$ 4,291