Note 13 - Segment and Geographical Information (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

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

Revenues:	For the years ended December 31,
	2012		2013		2014
IME and other related services (1)	$	476,847	$	567,070	$	674,229
Peer and bill reviews, Medicare compliance and case management services (1)		44,390		48,946		101,386
Total revenues	$	521,237	$	616,016	$	775,615

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

	United						United
	States			Canada			Kingdom			Australia			Total
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
2014
Revenues	$	468,419		$	32,889		$	189,755		$	84,552		$	775,615
Segment profit		76,065			4,673			32,921			18,481			132,140
Depreciation and amortization expense		34,302			2,824			12,048			11,106			60,280
Capital expenditures		(7,687	)		(37	)		(1,254	)		(1,916	)		(10,894	)
Total assets (3)		577,974			25,807			239,260			87,103			930,144
Long-lived assets (3)		473,800			18,178			96,635			73,721			662,334

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

	2012			2013			2014
Segment Profit	$	79,789		$	97,461		$	132,140
Depreciation and amortization		(58,551	)		(62,748	)		(60,280	)
Share-based compensation expense		(13,756	)		(17,157	)		(20,024	)
Acquisition related transaction costs		(1,655	)		(2,134	)		(3,535	)
Other expenses		(702	)		(1,353	)		(1,201	)
Income from operations	$	5,125		$	14,069		$	47,100