Note 13 - Segment and Geographical Information (Tables)

9 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

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

Revenues:	For the three months ended September 30,				For the nine months ended September 30,
	2014		2015		2014		2015
IME and other related services (1)	$	174,012	$	173,866	$	501,520	$	516,699
Peer and bill reviews, Medicare compliance services and case management services (1)		30,066		32,167		72,031		94,388
Total revenues	$	204,078	$	206,033	$	573,551	$	611,087

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

	United States			Canada			United Kingdom			Australia			Total
Three months ended September 30, 2014
Revenues	$	123,112		$	8,075		$	48,865		$	24,026		$	204,078
Segment profit		21,187			842			8,154			5,900			36,083
Depreciation and amortization expense		9,148			685			2,962			2,910			15,705
Capital expenditures		(1,305	)		(3	)		(505	)		(769	)		(2,582	)
Nine months ended September 30, 2014
Revenues	$	346,504		$	24,160		$	139,583		$	63,304		$	573,551
Segment profit		57,770			3,105			23,613			14,184			98,672
Depreciation and amortization expense		25,037			2,207			9,230			8,431			44,905
Capital expenditures		(4,169	)		(12	)		(1,022	)		(989	)		(6,192	)
Total assets (3)		578,158			27,195			239,533			95,131			940,017
Long-lived assets (2)(3)		482,513			19,522			103,945			80,722			686,702
Three months ended September 30, 2015
Revenues	$	128,768		$	9,614		$	46,915		$	20,736		$	206,033
Segment profit		22,242			1,274			8,839			4,721			37,076
Depreciation and amortization expense		8,519			61			2,128			2,289			12,997
Capital expenditures		(1,746	)		(39	)		(232	)		(478	)		(2,495	)
Nine months ended September 30, 2015
Revenues	$	382,611		$	27,235		$	140,371		$	60,870		$	611,087
Segment profit		64,516			3,257			24,020			13,591			105,384
Depreciation and amortization expense		27,001			751			6,608			7,214			41,574
Capital expenditures		(5,067	)		(208	)		(667	)		(1,395	)		(7,337	)
Total assets (3)		720,864			24,223			247,067			76,267			1,068,421
Long-lived assets (2)(3)		464,505			14,802			93,854			59,629			632,790

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

	For the three months ended September 30,						For the nine months ended September 30,
	2014			2015			2014			2015
Segment Profit	$	36,083		$	37,075		$	98,672		$	105,384
Depreciation and amortization		(15,705	)		(12,997	)		(44,905	)		(41,574	)
Share-based compensation expense		(4,680	)		(5,393	)		(14,660	)		(18,094	)
Acquisition related transaction costs		(871	)		(634	)		(2,825	)		(1,327	)
Other income (expenses)		(585	)		84			(771	)		749
Income from operations	$	14,242		$	18,135		$	35,511		$	45,138