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Revenue Arrangements (Tables)
3 Months Ended
Mar. 31, 2021
Revenue from Contract with Customer [Abstract]  
Schedule of Changes in Contract Liabilities
The following table presents changes in the Company’s contract liabilities during the three months ended March 31, 2021 (in thousands):
Balance atBalance at
beginning of periodAdditionsDeductionsend of period
Three Months Ended March 31, 2021
Contract liabilities:
     Deferred revenue$110,796 $— $(2,730)$108,066 
Total contract liabilities$110,796 $— $(2,730)$108,066