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

6 Months Ended

Jun. 30, 2011

Components of the Change in Deferred Revenue-Entry of Right-to-Use Contracts and Deferred Commission Expense

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,
	2011			2010
Deferred revenue - entry of right-to-use contracts, as of January 1,	$	44,349		$	29,493
Deferral of new right-to-use contracts		8,710			10,618
Deferred revenue recognized		(2,800	)		(2,119	)
Net increase in deferred revenue		5,910			8,499
Deferred revenue - entry of right-to-use contracts, as of June 30,	$	50,259		$	37,992
Deferred commission expense, as of January 1,	$	14,898		$	9,373
Costs deferred		3,256			3,708
Commission expense recognized		(909	)		(638	)
Net increase in deferred commission expense		2,347			3,070
Deferred commission expense, June 30,	$	17,245		$	12,443