Consolidated Statements of Earnings and Other Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues and reimbursable expenses:
Revenue from Contract with Customer, Including Assessed Tax	$ 217,857	$ 220,754	$ 440,476	$ 425,199
Reimbursable Revenues	2,970	23,534	22,273	42,151
Total revenues and reimbursable expenses	220,827	244,288	462,749	467,350
Direct costs and reimbursable expenses (exclusive of depreciation and amortization shown in operating expenses):
Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization	149,514	141,628	305,762	279,408
Cost, Depreciation and Amortization	1,334	1,171	2,635	2,288
Reimbursable Expense	2,866	23,657	22,255	42,326
Total direct costs and reimbursable expenses	153,714	166,456	330,652	324,022
Operating expenses and other losses (gains), net
Selling, general and administrative expenses	44,857	52,537	88,303	103,286
Restructuring charges	109	754	1,718	2,029
Gain (Loss) Related To Litigation Settlement And Other Operating Gains	0	485	150	941
Depreciation and amortization	6,193	7,151	12,307	14,323
Goodwill, Impairment Loss	0	0	59,816	0
Total operating expenses and other losses (gains), net	51,159	59,957	161,994	118,697
Operating income (loss)	15,954	17,875	(29,897)	24,631
Other income (expense), net:
Interest expense, net of interest income	(2,916)	(4,524)	(5,257)	(8,782)
Other income (expense), net	3,948	695	(1,348)	2,912
Total other income (expense), net	1,032	(3,829)	(6,605)	(5,870)
Income (loss) from continuing operations before taxes	16,986	14,046	(36,502)	18,761
Income tax expense (benefit)	3,414	3,477	(7,801)	4,842
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	13,572	10,569	(28,701)	13,919
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	(25)	(97)	(60)	(143)
Net income (loss)	$ 13,547	$ 10,472	$ (28,761)	$ 13,776
Net income (loss) from continuing operations
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.62	$ 0.48	$ (1.31)	$ 0.63
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0	0	(0.01)	0
Basic (USD per share)	0.62	0.48	(1.32)	0.63
Net earnings per diluted share:
Income (Loss) from Continuing Operations, Per Diluted Share	0.61	0.47	(1.31)	0.62
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	0	0	(0.01)	0
Earnings Per Share, Diluted	$ 0.61	$ 0.47	$ (1.32)	$ 0.62
Weighted average shares used in calculating earnings (loss) per share:
Weighted average common shares outstanding – basic	21,869	21,997	21,848	21,933
Weighted average common shares outstanding – diluted	22,116	22,400	21,848	22,356
Net income (loss)
Net income (loss)	$ 13,547	$ 10,472	$ (28,761)	$ 13,776
Foreign currency translation adjustments, net of tax	104	(359)	(675)	(43)
Unrealized gain (loss) on investment, net of tax	(5,678)	3,915	(5,936)	6,572
Unrealized loss on cash flow hedging instruments, net of tax	(1,705)	(612)	(3,390)	(849)
Other comprehensive income (loss)	(7,279)	2,944	(10,001)	5,680
Comprehensive income (loss)	$ 6,268	$ 13,416	$ (38,762)	$ 19,456