Consolidated Statements of Earnings and Other Comprehensive Income (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues and reimbursable expenses:
Revenues	$ 161,888	$ 153,579	$ 445,196	$ 443,270
Reimbursable expenses	13,470	13,140	41,820	38,280
Total revenues and reimbursable expenses	175,358	166,719	487,016	481,550
Direct costs and reimbursable expenses (exclusive of depreciation and amortization shown in operating expenses):
Direct costs	89,283	92,865	277,942	272,072
Intangible assets amortization	787	1,309	3,071	4,111
Reimbursable expenses	13,405	13,005	41,808	38,386
Total direct costs and reimbursable expenses	103,475	107,179	322,821	314,569
Operating expenses:
Selling, general and administrative	31,095	27,617	92,437	88,256
Restructuring charges	2,194	394	3,253	1,379
Restatement related expenses	68	845	1,785	3,870
Litigation settlements, net			1,150	1,096
Depreciation and amortization	4,879	5,007	13,585	13,589
Goodwill impairment charge	13,083	21,973	13,083	21,973
Total operating expenses	51,319	55,836	125,293	130,163
Operating income	20,564	3,704	38,902	36,818
Other income (expense):
Interest expense, net of interest income	(2,312)	(2,762)	(6,193)	(9,869)
Other income (expense)	136	(571)	306	(532)
Total other expense	(2,176)	(3,333)	(5,887)	(10,401)
Income from continuing operations before income tax expense	18,388	371	33,015	26,417
Income tax expense (benefit)	7,972	(681)	15,707	12,727
Net income from continuing operations	10,416	1,052	17,308	13,690
Income (loss) from discontinued operations, net of tax	47	(563)	518	324
Net income	10,463	489	17,826	14,014
Net earnings per basic share:
Net income from continuing operations	$ 0.47	$ 0.05	$ 0.79	$ 0.65
Income (loss) from discontinued operations, net of tax	$ 0.01	$ (0.03)	$ 0.02	$ 0.01
Net income	$ 0.48	$ 0.02	$ 0.81	$ 0.66
Net earnings per diluted share:
Net income from continuing operations	$ 0.47	$ 0.05	$ 0.78	$ 0.64
Income (loss) from discontinued operations, net of tax		$ (0.03)	$ 0.02	$ 0.01
Net income	$ 0.47	$ 0.02	$ 0.80	$ 0.65
Weighted average shares used in calculating earnings per share:
Basic	21,950	21,551	21,881	21,224
Diluted	22,326	21,968	22,247	21,535
Comprehensive Income:
Net income	10,463	489	17,826	14,014
Foreign currency translation (loss) gain, net of tax	496	(346)	358	257
Unrealized (loss) gain on cash flow hedging instruments, net of tax	(144)	234	(336)	541
Other comprehensive (loss) income	352	(112)	22	798
Comprehensive income	$ 10,815	$ 377	$ 17,848	$ 14,812