Operating Segments and Related Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment information
Revenue	$ 41,981	$ 50,205	$ 79,882	$ 95,306
Net income (loss)	(1,468)	1,831	(5,142)	1,334
Income tax expense	186	586	299	642
Interest expense (income), net	(43)	53	11	(164)
EBIT	(1,325)	2,470	(4,832)	1,812
Depreciation of property and equipment	1,586	2,027	3,268	4,035
Amortization of intangible assets	902	1,332	1,805	2,608
EBITDA	1,163	5,829	241	8,455
Foreign currency transaction (gains) losses on short-term intercompany balances	(163)	225	(148)	582
Acquisition-related charges	230	191	249	(475)
Transformation severance and related expenses	1,554	617	1,939	617
Stock-based compensation	983	1,155	2,004	2,473
Adjusted EBITDA	3,767	8,017	4,285	11,652
Recovery Audit Services - Americas [Member]
Segment information
Revenue	27,029	29,392	51,827	55,634
EBIT	5,393	6,771	9,477	12,225
Depreciation of property and equipment	1,245	1,356	2,501	2,724
Amortization of intangible assets	501	698	1,001	1,396
EBITDA	7,139	8,825	12,979	16,345
Foreign currency transaction (gains) losses on short-term intercompany balances	(154)	171	(44)	223
Acquisition-related charges		315		325
Transformation severance and related expenses	458	80	466	80
Adjusted EBITDA	7,443	9,391	13,401	16,973
Recovery Audit Services - Europe/Asia-Pacific [Member]
Segment information
Revenue	12,382	10,770	22,084	21,787
EBIT	1,359	(74)	1,460	367
Depreciation of property and equipment	149	126	295	238
Amortization of intangible assets	305	452	612	848
EBITDA	1,813	504	2,367	1,453
Foreign currency transaction (gains) losses on short-term intercompany balances	(40)	69	(113)	375
Acquisition-related charges		(168)		(900)
Transformation severance and related expenses	483	537	562	537
Adjusted EBITDA	2,256	942	2,816	1,465
Adjacent Services [Member]
Segment information
Revenue	2,281	3,137	4,564	7,080
EBIT	(1,768)	(1,336)	(3,342)	(1,647)
Depreciation of property and equipment	158	154	318	309
Amortization of intangible assets	96	182	192	364
EBITDA	(1,514)	(1,000)	(2,832)	(974)
Acquisition-related charges	230	44	249	100
Transformation severance and related expenses	235	0	378	0
Adjusted EBITDA	(1,049)	(956)	(2,205)	(874)
Healthcare Claims Recovery Audit Services [Member]
Segment information
Revenue	289	6,906	1,407	10,805
EBIT	(1,646)	1,705	(3,652)	855
Depreciation of property and equipment	34	391	154	764
EBITDA	(1,612)	2,096	(3,498)	1,619
Transformation severance and related expenses	250	0	405	0
Adjusted EBITDA	(1,362)	2,096	(3,093)	1,619
Corporate Support [Member]
Segment information
EBIT	(4,663)	(4,596)	(8,775)	(9,988)
EBITDA	(4,663)	(4,596)	(8,775)	(9,988)
Foreign currency transaction (gains) losses on short-term intercompany balances	31	(15)	9	(16)
Transformation severance and related expenses	128		128
Stock-based compensation	983	1,155	2,004	2,473
Adjusted EBITDA	$ (3,521)	$ (3,456)	$ (6,634)	$ (7,531)