Deferred Revenue-Right-to-use contracts and Deferred commission expense (Tables)

6 Months Ended

Jun. 30, 2015

Deferred Revenue Disclosure [Abstract]

Deferred Revenue, by Arrangement, Disclosure

As of June 30, 2015 and December 31, 2014, the components of the change in deferred revenue-entry of right-to-use contracts and deferred commission expense are as follows (amounts in thousands):

	Six Months Ended June 30,
	2015			2014
Deferred revenue–upfront payments from right-to-use contracts, as of January 1,	$	74,174		$	68,673
Right-to-use contracts current period, gross	6,375			6,344
Revenue recognized from right-to-use contract upfront payments	(4,147		)	(4,029		)
Right-to-use contract upfront payments, deferred, net	2,228			2,315
Deferred revenue–upfront payments from right-to-use contracts, as of June 30,	$	76,402		$	70,988
Deferred commission expense, as of January 1,	$	28,589		$	25,251
Deferred commission expense	3,067			2,652
Commission expense recognized	(1,696		)	(1,318		)
Net increase in deferred commission expense	1,371			1,334
Deferred commission expense, as of June 30,	$	29,960		$	26,585