Note 13 - Segment and Geographical Information (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Revenue from External Customers by Products and Services [Table Text Block]

Revenues:	For the years ended December 31,
	2011		2012		2013
IME and other related services (1)	$	356,392	$	476,847	$	567,070
Peer and bill reviews (1)		41,468		44,390		48,946
Total revenues	$	397,860	$	521,237	$	616,016

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	United						United
	States			Canada			Kingdom			Australia			Total
2011
Revenues	$	298,056		$	21,271		$	78,533		$	—		$	397,860
Segment profit		44,867			5,176			13,261			—			63,304
Depreciation and amortization expense		34,081			4,956			8,402			—			47,439
Capital expenditures		(6,048	)		—			(808	)		—			(6,856	)
Total assets (3)		402,623			50,960			173,456			—			627,039
Long-lived assets (3)		340,955			42,377			72,452			—			455,784
2012
Revenues	$	340,200		$	27,595		$	131,278		$	22,164		$	521,237
Segment profit		44,515			4,942			24,810			5,522			79,789
Depreciation and amortization expense		34,338			8,381			12,341			3,491			58,551
Capital expenditures		(5,071	)		(164	)		(564	)		(42	)		(5,841	)
Total assets (3)		398,163			42,223			196,365			103,750			740,501
Long-lived assets (3)		337,831			34,919			99,140			94,291			566,181
2013
Revenues	$	374,817		$	31,131		$	143,418		$	66,650		$	616,016
Segment profit		46,934			5,137			29,439			15,951			97,461
Depreciation and amortization expense		31,787			9,518			11,566			9,877			62,748
Capital expenditures		(3,197	)		(19	)		(1,781	)		(1,547	)		(6,544	)
Total assets (3)		396,635			30,061			221,681			84,136			732,513
Long-lived assets (3)		315,748			23,056			100,796			72,979			512,579

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	2011			2012			2013
Segment Profit	$	63,304		$	79,789		$	97,461
Depreciation and amortization		(47,439	)		(58,551	)		(62,748	)
Share-based compensation expense		(7,834	)		(13,756	)		(17,157	)
Acquisition related transaction costs		(3,107	)		(1,655	)		(2,134	)
Other expenses		(878	)		(702	)		(1,353	)
Income from operations	$	4,046		$	5,125		$	14,069