Description of the Business and Basis of Presentation (Tables)

3 Months Ended

Mar. 31, 2018

Restricted cash was $1,308 and $819 as of March 31, 2018 and December 31, 2017, respectively, and is recorded in other current assets in the accompanying unaudited condensed consolidated balance sheets. Restricted cash consists primarily of funds received from strategic partners for use in approved marketing and promotional activities.

	March 31,		December 31,
	2018		2017
Cash and cash equivalents	$	39,343	$	33,178
Restricted cash, included in other current assets		1,308		819
Total cash, cash equivalents and restricted cash	$	40,651	$	33,997

Changes in Deferred Revenue

The following table reflects the changes in deferred revenue for the three months ended March 31, 2018 and 2017:

	2018			2017
Deferred revenue, including long-term portion as of January 1,	$	90,437		$	89,400
Additions		197,227			173,477
Revenue recognized during the period		(137,509	)		(117,690	)
Other adjustments		(744	)		(1,451	)
Deferred revenue, including long-term portion as of March 31,		149,411			143,736
Less: Deferred revenue, long-term portion, included in other liabilities		10,606			10,494
Deferred revenue, short-term portion as of March 31,	$	138,805		$	133,242