Convertible Senior Notes Due 2023 - Narrative (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2022 USD ($) day $ / shares Rate shares	Dec. 31, 2021 USD ($)	Jan. 01, 2022 USD ($)
Notes payable
Strike price of the warrant transactions (in dollars per share) | $ / shares	$ 80.91
Accounting Standards Update 2020-06
Notes payable
Long-term Debt | $			$ 20,600,000
Convertible Debt
Notes payable
Interest rate	0.625%
Principal amount of debt | $	$ 402,500,000	$ 402,500,000
Conversion rate for the notes (in shares per $1,000 principal amount)	0.0168545
Conversion price, per share of common stock (in dollars per share) | $ / shares	$ 59.33
Warrants issued (in shares) | shares	6,783,939
Number of shares per warrant entitled to holder (in shares) | shares	1
Conversion of debt to equity | $	$ 0	$ 0
Convertible note hedge options issued (in shares) | shares	402,500
Convertible Debt | Conversion Circumstance One
Notes payable
Threshold trading days (whether or not consecutive)	20
Consecutive trading day period (in days)	30
Conversion rate of the notes on trading day (as percent)	130.00%
Conversion option stock price trigger (in dollars per share) | $ / shares	$ 77.13
Convertible Debt | Conversion Circumstance Two
Notes payable
Threshold trading days (whether or not consecutive)	5
Consecutive trading day period (in days)	10
Conversion rate of the notes on trading day (as percent) | Rate	98.00%