Other Long-Term Liabilities (Tables)

3 Months Ended

Mar. 31, 2017

Other Long-Term Liabilities [Abstract]

Schedule of other long-term liabilities

	December 31, 2016		March 31, 2017
Deferred payments related to acquisitions	$	13,754	$	13,727
Deferred revenue, net of current portion		17,981		17,940
Loss on facilities not in use		7,813		6,964
Deferred rent and other facility costs		8,251		7,919
Lease incentives		2,684		2,667
Other long-term liabilities	$	50,483	$	49,217