Quarterly report pursuant to Section 13 or 15(d)

Long-term Debt - Summarized Terms of the Convertible Senior Notes (Details)

v3.21.1
Long-term Debt - Summarized Terms of the Convertible Senior Notes (Details) - Convertible senior notes
$ / shares in Units, equity_instrument in Millions
3 Months Ended
Mar. 31, 2021
USD ($)
equity_instrument
$ / shares
2022 Convertible Senior Notes  
Debt Instrument [Line Items]  
Outstanding Principal Amount | $ $ 150,000,000
Stated Interest Rate 4.125%
Conversion Ratio 36.7825
Conversion Price (in usd per share) $ 27.19
Issuable Shares | equity_instrument 5.5
Dividend Threshold Amount (in usd per share) $ 0.33
2023 Convertible Senior Notes  
Debt Instrument [Line Items]  
Outstanding Principal Amount | $ $ 144,000,000
Stated Interest Rate 0.00%
Conversion Ratio 20.6779
Conversion Price (in usd per share) $ 48.36
Issuable Shares | equity_instrument 3.0
Dividend Threshold Amount (in usd per share) $ 0.34