CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities attributable to continuing operations:
Net income and comprehensive income	$ 13,554	$ 9,909
Less: Loss from discontinued operations, net of tax	2,353	1,943
Net income from continuing operations	15,907	11,852
Adjustments to reconcile income from continuing operations to net cash provided by operating activities attributable to continuing operations:
Loss on disposal of fixed assets	267	38
Amortization of intangibles	97	99
Depreciation	2,172	1,371
Non-cash compensation expense	5,062	4,393
Deferred income taxes	(781)	0
Excess tax benefit from stock-based award activity	(4,079)	(208)
Bad debt expense	387	176
Amortization of debt issuance costs	122	0
Changes in current assets and liabilities:
Accounts receivable	(12,122)	(7,081)
Prepaid and other current assets	(1,681)	(165)
Accounts payable, accrued expenses and other current liabilities	(1,713)	4,450
Income taxes payable	6,825	202
Other, net	(373)	(75)
Net cash provided by operating activities attributable to continuing operations	10,836	15,202
Cash flows from investing activities attributable to continuing operations:
Capital expenditures	(6,452)	(2,707)
Acquisition of a business	(4,500)	(37)
Decrease in restricted cash	2,454	94
Net cash used in investing activities attributable to continuing operations	(8,498)	(2,650)
Cash flows from financing activities attributable to continuing operations:
Payments related to net-share settlement of stock-based compensation, net of proceeds from exercise of stock options	(2,808)	(5,294)
Payment of equity offering costs	(23)	0
Payments of debt issuance costs	(8)	0
Excess tax benefit from stock-based award activity	4,079	208
Purchase of treasury stock	(48,090)	(218)
Dividends	0	(76)
Net cash used in financing activities attributable to continuing operations	(46,850)	(5,380)
Total cash (used in) provided by continuing operations	(44,512)	7,172
Net cash used in operating activities attributable to discontinued operations	(2,852)	(417)
Total cash used in discontinued operations	(2,852)	(417)
Net (decrease) increase in cash and cash equivalents	(47,364)	6,755
Cash and cash equivalents at beginning of period	206,975	86,212
Cash and cash equivalents at end of period	$ 159,611	$ 92,967