Operating Segments and Related Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment information
Revenues	$ 52,087	$ 51,751	$ 155,394	$ 153,173
Net earnings	2,565	422	3,859	1,504
Income tax expense	505	593	1,586	2,498
Interest expense, net	515	398	1,548	1,223
EBIT	3,585	1,413	6,993	5,225
Depreciation of property and equipment	1,716	1,464	4,808	3,859
Amortization of intangible assets	1,431	1,277	5,217	3,527
EBITDA	6,732	4,154	17,018	12,611
Foreign currency transaction (gains) losses on short-term intercompany balances	(348)	1,055	(190)	176
Acquisition obligations classified as compensation	93	106	288	334
Transformation severance and related expenses	518	170	1,036	1,267
Costs for overtime pay claim			577
Stock-based compensation	1,839	1,461	4,479	3,663
Adjusted EBITDA	8,834	6,946	23,208	18,051
Recovery Audit Services - Americas [Member]
Segment information
Revenues	33,235	30,980	91,640	87,994
EBIT	9,964	7,869	21,994	19,951
Depreciation of property and equipment	1,111	963	3,016	2,506
Amortization of intangible assets	767	575	3,120	1,719
EBITDA	11,842	9,407	28,130	24,176
Foreign currency transaction (gains) losses on short-term intercompany balances	(85)	177	(77)	154
Transformation severance and related expenses	245	182	358	1,119
Costs for overtime pay claim			577
Adjusted EBITDA	12,002	9,766	28,988	25,449
Recovery Audit Services - Europe/Asia- Pacific [Member]
Segment information
Revenues	11,406	14,516	39,122	45,021
EBIT	304	1,123	3,515	5,408
Depreciation of property and equipment	90	96	217	279
Amortization of intangible assets	462	488	1,491	1,160
EBITDA	856	1,707	5,223	6,847
Foreign currency transaction (gains) losses on short-term intercompany balances	(266)	879	(117)	25
Transformation severance and related expenses	273	(12)	351	148
Adjusted EBITDA	863	2,574	5,457	7,020
New Services [Member]
Segment information
Revenues	7,446	6,255	24,632	20,158
EBIT	(651)	(1,869)	(2,270)	(4,852)
Depreciation of property and equipment	515	405	1,575	1,074
Amortization of intangible assets	202	214	606	648
EBITDA	66	(1,250)	(89)	(3,130)
Foreign currency transaction (gains) losses on short-term intercompany balances	3	(1)	4	(3)
Acquisition obligations classified as compensation	93	106	288	334
Transformation severance and related expenses			327
Adjusted EBITDA	162	(1,145)	530	(2,799)
Corporate Support [Member]
Segment information
EBIT	(6,032)	(5,710)	(16,246)	(15,282)
EBITDA	(6,032)	(5,710)	(16,246)	(15,282)
Stock-based compensation	1,839	1,461	4,479	3,663
Adjusted EBITDA	$ (4,193)	$ (4,249)	$ (11,767)	$ (11,619)