UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 41,624	$ 27,145
Adjustments to reconcile net income to cash provided by operating activities:
Deferred income tax provision, net	(1,025)	3,978
Provision for bad debts	1,504	896
Depreciation and amortization	6,246	6,373
Stock-based compensation expense	6,558	5,667
Defined benefit pension plans expense	1,366	692
Loss on deferred compensation plan investments, net	384	339
Gain on sale of Global's assets	0	(3,148)
Other	288	745
(Increase) decrease in operating assets
Trade receivables, net	(13,252)	(38,378)
Income tax refund receivable	6,811	(1,721)
Prepaid expenses and other current assets	(2,535)	(2,071)
Other assets, net	940	(544)
Increase (decrease) in operating liabilities
Accounts payable and other accrued liabilities	3,647	(1,321)
Accrued payroll costs	4,807	8,506
Income taxes payable	6,445	265
Other long-term liabilities	867	(1,774)
Cash provided by operating activities	64,675	5,649
Cash flows from investing activities:
Capital expenditures	(4,005)	(5,424)
Proceeds from sale of Global's assets	1,000	1,000
Cash used in investing activities	(3,005)	(4,424)
Cash flows from financing activities:
Proceeds from credit facility	427,600	887,293
Payments on credit facility	(464,823)	(872,740)
Payments on other financing arrangements	(1,491)	(1,582)
Repurchases of common stock	(12,465)	(4,226)
Cash dividends	(10,404)	(9,125)
Proceeds from exercise of stock options	0	72
Payments of loan financing fees	0	(1,696)
Cash (used in) provided by financing activities	(61,583)	(2,004)
Change in cash and cash equivalents	87	(779)
Cash and cash equivalents at beginning of period	379	1,482
Cash and cash equivalents at end of period	$ 466	$ 703