CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Revenue	$ 1,073,280	$ 822,442
Costs of revenue:
Direct costs	728,221	537,424
Indirect costs and selling expenses	257,338	205,700
Depreciation and amortization	18,063	14,811
Total costs of revenue	1,003,622	757,935
Income from operations	69,658	64,507
Interest expense and other, net	12,489	9,182
Income before income taxes	57,169	55,325
Income taxes	20,506	20,693
Net income	$ 36,663	$ 34,632
Basic earnings per share	$ 1.51	$ 1.43
Diluted earnings per share	$ 1.47	$ 1.40
Weighted-average basic shares outstanding	24,340	24,208
Weighted-average diluted shares outstanding	24,928	24,721