Deferred Revenue of Membership Upgrade Sales and Deferred Commission Expense (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Change in Deferred Revenue and Deferred Commissions

The components of the change in deferred revenue entry of membership subscriptions and deferred commission expense were as follows:

	As of
(amounts in thousands)	2021		2020
Deferred revenue - upfront payments from membership upgrade sales as of December 31,	$	138,878	$	126,814
Membership upgrade sales current period, gross	36,270		21,739
Revenue recognized from membership upgrade sales upfront payments	(11,191)		(9,675)
Net increase in deferred revenue - upfront payments from membership grade sales	25,079		12,064
Deferred revenue - upfront payments from membership upgrade sales as of December 31, (a)	$	163,957	$	138,878
Deferred commission expense as of December 31	$	42,471	$	41,149
Deferred commission expense	8,657		4,995
Commission expense recognized	(3,779)		(3,673)
Net increase in deferred commission expense	4,878		1,322
Deferred commission expense as of December 31,	$	47,349	$	42,471

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(a)Included in Deferred membership revenue on the Consolidated Balance Sheet.