UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income		$ 116,654	$ 41,624
Adjustments to reconcile net income to cash provided by operating activities:
Gain on sale of discontinued operations		(79,602)	0
Deferred income tax provision, net		1,022	(1,025)
Provision for bad debts		936	1,504
Depreciation and amortization		5,051	6,246
Stock-based compensation expense		7,469	6,558
Defined benefit pension plan expense		647	1,366
Loss on deferred compensation plan investments, net		80	384
Loss on disposal or impairment of assets		1,077	23
Noncash lease expense		4,830
Loss on equity method investment		359	0
Contingent consideration liability remeasurement		459	0
Other		263	265
(Increase) decrease in operating assets
Trade receivables, net		(14,987)	(13,252)
Income tax refund receivable		100	6,811
Prepaid expenses and other current assets		(1,459)	(2,535)
Other assets, net		(6,985)	940
Increase (decrease) in operating liabilities
Accounts payable and other accrued liabilities		2,638	3,647
Accrued payroll costs		9,583	4,807
Income taxes payable		(635)	6,445
Other liabilities		(990)	867
Cash provided by operating activities		46,510	64,675
Cash flows from investing activities:
Capital expenditures		(7,728)	(4,005)
Equity method investment		(7,500)	0
Net proceeds from the sale of assets held for sale		123,254	1,000
Cash provided by (used in) investing activities		108,026	(3,005)
Cash flows from financing activities:
Proceeds from credit facility		80,100	427,600
Payments on credit facility		(86,900)	(464,823)
Payments on other financing arrangements		(1,353)	(1,491)
Repurchases of common stock		(91,947)	(12,465)
Cash dividends		(12,726)	(10,404)
Payment of contingent consideration liability		(477)	0
Other		(25)	0
Cash used in financing activities		(113,328)	(61,583)
Change in cash and cash equivalents		41,208	87
Cash and cash equivalents, beginning of period		112	379
Cash and cash equivalents, end of period		41,320	466
Cash Paid During the Period For:
Income taxes	[1]	16,749	8,583
Operating lease liabilities		6,256
Interest, net		1,079	3,132
Non-Cash Financing and Investing Transactions:
ROU assets obtained from new operating leases		7,224
Contingent contribution for equity method investment		1,500	0
Unsettled repurchases of common stock		1,060	0
Employee stock purchase plan		427	405
Equipment acquired under finance leases		202	424
Shares tendered in payment of exercise price of stock options		$ 0	46
Proceeds from income tax refunds			$ 6,800

[1] During the nine months ended September 30, 2018, cash provided by operating activities includes the receipt of an income tax refund in the amount of $6.8 million.