Condensed Consolidated Statements of Cash Flows Unaudited - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash Flows From Operating Activities:
Net income	$ 17,837,000	$ (7,037,000)
Reconciliation of net income (loss) to net cash provided by operating activities:
Depreciation and amortization	20,942,000	19,450,000
Goodwill impairment	0	17,674,000
Loss on disposition of business	0	341,000
Stock-based compensation	3,563,000	1,998,000
Changes in operating assets and liabilities:
Accounts receivable, net	3,111,000	5,473,000
Unbilled revenues, net	(7,026,000)	(7,000,000)
Accrued or prepaid income taxes	(7,424,000)	(6,806,000)
Accounts payable and accrued liabilities	(11,331,000)	(3,405,000)
Deferred revenues	189,000	(457,000)
Accrued retirement costs	(9,879,000)	(4,975,000)
Prepaid expenses and other operating activities	928,000	(3,224,000)
Net cash provided by operating activities	10,532,000	12,032,000
Cash Flows From Investing Activities:
Acquisitions of property and equipment	(2,120,000)	(5,476,000)
Capitalization of computer software costs	(10,083,000)	(8,823,000)
Proceeds from settlement of life insurance policies	4,198,000	0
Payments for business acquisitions, net of cash acquired	(3,786,000)	0
Other investing	0	(87,000)
Net cash used in investing activities	(11,791,000)	(14,386,000)
Cash Flows From Financing Activities:
Cash dividends paid	(6,394,000)	(4,859,000)
Repurchases of common stock	(2,999,000)	(2,666,000)
Increases in revolving credit facility borrowings	29,983,000	73,340,000
Payments on revolving credit facility borrowings	(18,986,000)	(54,124,000)
Payments of contingent consideration on acquisitions	(1,683,000)	0
Other financing activities	(282,000)	(292,000)
Net cash (used in) provided by financing activities	(361,000)	11,399,000
Effects of exchange rate changes on cash and cash equivalents	1,672,000	(889,000)
Increase in cash and cash equivalents	52,000	8,156,000
Cash and cash equivalents at beginning of year	44,656,000	51,802,000
Cash and cash equivalents at end of period	$ 44,708,000	$ 59,958,000