Leasehold Improvements, Equipment, Construction in Progress and Land, Net (Tables)

6 Months Ended

Jun. 30, 2013

Leasehold Improvements, Equipment, Construction in Progress and Land, Net

Summary of leasehold improvements, equipment, and construction in progress and related accumulated depreciation and amortization

		June 30, 2013			December 31, 2012
	Ranges of Estimated Useful Life	(Unaudited)
Equipment	2 - 5 Years	$	30,450		$	28,498
Software	3 - 10 Years	16,225			15,031
Vehicles	4 Years	7,240			9,353
Other	10 Years	516			367
Leasehold improvements	Shorter of lease term or economic life up to 10 years	18,450			17,920
Construction in progress		4,691			2,086
		77,572			73,255
Less accumulated depreciation and amortization		(37,449		)	(34,917		)
		40,123			38,338
Land		1,672			1,672
Leasehold improvements, equipment, land and construction in progress, net		$	41,795		$	40,010