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Long-Term Debt - Schedule of Note Hedges (Details) - 2022 Note Hedge
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
shares
Debt Instrument [Line Items]  
Purchase | $ $ 128,017
Shares (in shares) 5,807
Shares as of December 31, 2020 (in shares) 1,256