Operating Segments and Related Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment information
Revenue	$ 42,988	$ 53,403	$ 122,870	$ 148,709
Net income (loss)	(239)	4,877	(5,381)	6,211
Income tax expense	554	1,029	853	1,671
Interest expense (income), net	(44)	75	(33)	(89)
EBIT	271	5,981	(4,561)	7,793
Depreciation of property and equipment	1,428	2,034	4,696	6,069
Amortization of intangible assets	895	1,204	2,700	3,812
EBITDA	2,594	9,219	2,835	17,674
Foreign currency transaction (gains) losses on short-term intercompany balances	1,221	(636)	1,073	(54)
Acquisition-related charges (benefits)		706	249	231
Transformation severance and related expenses	413	161	2,352	778
Stock-based compensation	1,405	1,304	3,409	3,777
Adjusted EBITDA	5,633	10,754	9,918	22,406
Recovery Audit Services - Americas [Member]
Segment information
Revenue	28,550	32,365	80,377	87,999
EBIT	7,155	9,418	16,632	21,643
Depreciation of property and equipment	1,111	1,414	3,612	4,138
Amortization of intangible assets	500	698	1,501	2,094
EBITDA	8,766	11,530	21,745	27,875
Foreign currency transaction (gains) losses on short-term intercompany balances	208	(80)	164	143
Acquisition-related charges (benefits)		662		987
Transformation severance and related expenses	44	20	510	100
Adjusted EBITDA	9,018	12,132	22,419	29,105
Recovery Audit Services - Europe/Asia-Pacific [Member]
Segment information
Revenue	10,708	12,009	32,792	33,796
EBIT	(151)	1,987	1,309	2,354
Depreciation of property and equipment	150	124	445	362
Amortization of intangible assets	299	323	911	1,171
EBITDA	298	2,434	2,665	3,887
Foreign currency transaction (gains) losses on short-term intercompany balances	1,192	(574)	1,079	(199)
Acquisition-related charges (benefits)		0		(900)
Transformation severance and related expenses	7	56	569	593
Adjusted EBITDA	1,497	1,916	4,313	3,381
Adjacent Services [Member]
Segment information
Revenue	3,586	3,625	8,150	10,705
EBIT	(265)	(351)	(3,607)	(1,998)
Depreciation of property and equipment	145	167	463	476
Amortization of intangible assets	96	183	288	547
EBITDA	(24)	(1)	(2,856)	(975)
Acquisition-related charges (benefits)		44	249	144
Transformation severance and related expenses	18	81	396	81
Adjusted EBITDA	(6)	124	(2,211)	(750)
Healthcare Claims Recovery Audit Services [Member]
Segment information
Revenue	144	5,404	1,551	16,209
EBIT	(1,133)	621	(4,785)	1,476
Depreciation of property and equipment	22	329	176	1,093
EBITDA	(1,111)	950	(4,609)	2,569
Transformation severance and related expenses	26	4	431	4
Adjusted EBITDA	(1,085)	954	(4,178)	2,573
Corporate Support [Member]
Segment information
EBIT	(5,335)	(5,694)	(14,110)	(15,682)
EBITDA	(5,335)	(5,694)	(14,110)	(15,682)
Foreign currency transaction (gains) losses on short-term intercompany balances	(179)	18	(170)	2
Transformation severance and related expenses	318		446
Stock-based compensation	1,405	1,304	3,409	3,777
Adjusted EBITDA	$ (3,791)	$ (4,372)	$ (10,425)	$ (11,903)