Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016		Sep. 30, 2015
Cash Flows From Operating Activities:
Net income	$ 29,139		$ 6,372
Reconciliation of net income to net cash provided by operating activities:
Depreciation and amortization	30,643		32,219
Stock-based compensation	3,246		2,369
Changes in operating assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, net	(7,628)		14,190
Unbilled revenues, net	(16,118)		(8,604)
Accrued or prepaid income taxes	9,067		9,838
Accounts payable and accrued liabilities	5,410		(31,247)
Deferred revenues	(4,153)		1,064
Accrued retirement costs	(7,128)		(14,952)
Prepaid expenses and other operating activities	7,605		9,890
Net cash provided by operating activities	50,083		21,139
Cash Flows From Investing Activities:
Acquisitions of property and equipment	(5,782)		(10,296)
Capitalization of computer software costs	(13,653)		(16,182)
Payments for business acquisitions, net of cash acquired	(3,672)		(68,259)
Other investing activities	(95)		0
Net cash used in investing activities	(23,202)		(94,737)
Cash Flows From Financing Activities:
Cash dividends paid	(10,162)		(10,151)
Payments related to shares received for withholding taxes under stock-based compensation plans	(15)		(2)
Proceeds from shares purchased under employee stock-based compensation plans	1,208		1,196
Decrease in note payable for stock repurchase	(2,206)		0
Repurchases of common stock	0		(137)
Increases in short-term and revolving credit facility borrowings	79,664		126,032
Payments on short-term and revolving credit facility borrowings	(95,855)		(31,645)
Payments on capital lease obligations	(1,119)		(1,586)
Dividends paid to noncontrolling interests	(381)		(186)
Other financing activities	(12)		(4)
Net cash (used in) provided by financing activities	(28,878)		83,517
Effects of exchange rate changes on cash and cash equivalents	(2,406)		(4,046)
(Decrease) increase in cash and cash equivalents	(4,403)		5,873
Cash and cash equivalents at beginning of year	76,066	[1]	52,456
Cash and cash equivalents at end of period	$ 71,663		$ 58,329

[1] Derived from the audited Consolidated Balance Sheet