Note 13 - Segment and Geographical Information (Tables)

9 Months Ended

Sep. 30, 2012

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

Revenues:	For the three months ended September 30,				For the nine months ended September 30,
	2011		2012		2011		2012
United States	$	78,054	$	84,784	$	217,597	$	260,442
Canada		4,090		6,553		14,387		20,457
United Kingdom		27,074		33,521		50,564		95,474
Australia		—		5,227		—		5,227
Total	$	109,218	$	130,085	$	282,548	$	381,600

Disclosure on Geographic Areas, Long-Lived Assets

Long-lived assets: (1)	December 31, 2011		September 30, 2012
United States	$	340,955	$	321,278
Canada		42,377		37,227
United Kingdom		72,452		70,468
Australia		—		95,209
Total	$	455,784	$	524,182