Property and equipment (Tables)

12 Months Ended

Dec. 31, 2014

Property and equipment

Summary of property and equipment, at cost less accumulated depreciation and amortization

	December 31,
	2014			2013
Leasehold improvements	$	152,627		$	97,462
Construction in progress		20,104			18,157
Computer equipment		7,909			7,372
Software		17,827			10,452
Office equipment		297			412
Total property and equipment		198,764			133,855
Less: accumulated depreciation and amortization		(86,992	)		(66,295	)
Total property and equipment, net	$	111,772		$	67,560

Schedule of depreciation and amortization expense of property and equipment

	For the Years Ended December 31,
	2014		2013		2012
Network access	$	18,074	$	12,651	$	11,948
Network operations		5,662		4,091		2,844
Development and technology		3,381		1,992		1,049
General and administrative		329		206		117
Total depreciation and amortization of property and equipment	$	27,446	$	18,940	$	15,958