Deferred Revenue-Right-to-use contracts and Deferred Commission Expense

12 Months Ended

Dec. 31, 2016

Deferred Revenue Disclosure [Abstract]

Deferred Revenue-Right-to-use contracts and Deferred Commission Expense

Deferred Revenue-entry of right-to-use contracts and Deferred Commission Expense

As of December 31, 2016 and 2015, the components of the change in deferred revenue-entry of right-to-use contracts and deferred commission expense are as follows (amounts in thousands):

	December 31,
	2016			2015
Deferred revenue—upfront payments from right-to-use contracts, as of January 1,	$	78,405		$	74,174
Right-to-use contracts current period, gross	12,327			12,783
Revenue recognized from right-to-use contract upfront payments	(9,248		)	(8,552		)
Right-to-use contract upfront payments, deferred, net	3,079			4,231
Deferred revenue—upfront payments from right-to-use contracts, as of December 31,	$	81,484		$	78,405
Deferred commission expense, as of January 1,	$	30,865		$	28,589
Deferred commission expense	4,659			5,871
Commission expense recognized	(4,149		)	(3,595		)
Net increase in deferred commission expense	510			2,276
Deferred commission expense, as of December 31,	$	31,375		$	30,865