Property and equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property and equipment

Schedule of property and equipment

		December 31,

		2012			2011
Leasehold improvements		$	72,119		$	60,030
Construction in progress			6,295			7,059
Computer equipment			7,493			6,674
Software			7,519			5,818
Office equipment			411			400

Total property and equipment			93,837			79,981
Less: accumulated depreciation and amortization			(51,426	)		(40,264	)

Total property and equipment, net		$	42,411		$	39,717

Schedule of depreciation and amortization expense

		For the Years Ended December 31,

		2012			2011			2010
Network access		$	11,948		$	8,867		$	4,392
Network operations			2,844			2,444			1,747
Development and technology			1,049			873			1,024
General and administrative			117			117			348

Total depreciation and amortization of property and equipment		$	15,958		$	12,301		$	7,511