Note 13 - Segment and Geographical Information (Tables)

9 Months Ended

Sep. 30, 2014

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,
	2013		2014		2013		2014
IME and other related services (1)	$	139,880	$	174,012	$	421,505	$	501,520
Peer and bill reviews, Medicare compliance services and case management (1)		12,474		30,066		35,700		72,031
Total revenues	$	152,354	$	204,078	$	457,205	$	573,551

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

	United					United
	States			Canada		Kingdom			Australia			Total
Three months ended September 30, 2013
Revenues	$	93,963		$	7,290	$	34,604		$	16,497		$	152,354
Segment profit		12,023			1,238		6,997			3,627			23,885
Depreciation and amortization expense		7,730			3,087		2,751			2,342			15,910
Capital expenditures		(540	)		—		(250	)		(655	)		(1,445	)

	United						United
	States			Canada			Kingdom			Australia			Total
Nine months ended September 30, 2013
Revenues	$	280,634		$	22,986		$	103,645		$	49,940		$	457,205
Segment profit		35,794			3,778			20,495			11,829			71,896
Depreciation and amortization expense		24,608			7,331			8,637			7,482			48,058
Capital expenditures		(2,170	)		(18	)		(1,250	)		(1,320	)		(4,758	)
Total assets (3)		396,503			33,835			207,464			87,352			725,154
Long-lived assets (3)		321,351			26,242			95,344			78,415			521,352

	United						United
	States			Canada			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	)

	United						United
	States			Canada			Kingdom			Australia			Total
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 (3)		482,513			19,522			103,945			80,722			686,702

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,
	2013			2014			2013			2014
Segment Profit	$	23,885		$	36,083		$	71,896		$	98,672
Depreciation and amortization		(15,910	)		(15,705	)		(48,058	)		(44,905	)
Share-based compensation expense		(3,820	)		(4,680	)		(12,234	)		(14,660	)
Acquisition related transaction costs		(186	)		(871	)		(1,093	)		(2,825	)
Other expenses		24			(585	)		(650	)		(771	)
Income from operations	$	3,993		$	14,242		$	9,861		$	35,511