Fair Value Measurements - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2021
2026 Notes | Significant Other Observable Inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Principal amount		$ 977,500,000
Estimated fair value		$ 909,000,000
Fair Value, Measurements, Non-Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Operating lease right-of-use assets, associated carrying value reduced	$ 0
Fair Value, Measurements, Non-Recurring | United States
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Operating lease, impairment loss	500,000
Fair Value, Measurements, Non-Recurring | Canada
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Operating lease, impairment loss	$ 300,000
Estimated future cash flows discount rate	8.00%