Debt - Additional Information (Details)	1 Months Ended			12 Months Ended
	Feb. 28, 2022 USD ($)	Aug. 31, 2020 USD ($)	Apr. 30, 2018 USD ($) day shares $ / shares	Feb. 06, 2022 USD ($) financial_ratio $ / shares	Jan. 31, 2021 USD ($)	Feb. 02, 2020 USD ($)	Sep. 30, 2020 USD ($)	Apr. 04, 2018 $ / shares
Debt Instrument [Line Items]
Proceeds from issuance of convertible debt				$ 0	$ 251,892,000	$ 0
Debt issuance costs, net of amortization			$ 12,900,000
Closing price of stock (in dollars per share) | $ / shares				$ 26.38
Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, term		5 years
Senior secured credit facility, maximum borrowing capacity		$ 300,000,000
Credit facility, maturity period prior to stated maturity if out of compliance with liquidity threshold		91 days
Credit facility, daily minimum sum of cash and cash equivalents and aggregate unused commitments to prevent maturity prior to stated maturity		$ 625,000,000
Credit facility, amount borrowed							$ 250,000,000
Interest expense				$ 4,100,000	$ 1,400,000
Number of financial ratios | financial_ratio				2
Maximum consolidation leverage ratio				4.5
Minimum interest coverage ratio				3
Revolving Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Repayments of long-term lines of credit	$ 250,000,000
Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Interest rate during the period (percent)				1.60%	1.65%
Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Interest Rate Floor
Debt Instrument [Line Items]
Effective interest rate (percent)		0.00%
Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Commitment fee (percent)		0.25%
Revolving Credit Facility | Minimum | Base Rate
Debt Instrument [Line Items]
Margin rate (percent)		0.50%
Revolving Credit Facility | Minimum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Margin rate (percent)		1.50%
Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Commitment fee (percent)		0.40%
Revolving Credit Facility | Maximum | Base Rate
Debt Instrument [Line Items]
Margin rate (percent)		1.25%
Revolving Credit Facility | Maximum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Margin rate (percent)		2.25%
Capped Call
Debt Instrument [Line Items]
Payment to enter into agreement			64,600,000
Convertible Senior Notes
Debt Instrument [Line Items]
Debt issuance costs, net of amortization			9,800,000	$ 2,580,000	$ 4,671,000
Additional Paid-In Capital
Debt Instrument [Line Items]
Debt issuance costs, net of amortization			$ 3,100,000	$ 3,068,000
Common stock
Debt Instrument [Line Items]
Conversion price (in dollars per share) | $ / shares			$ 26.27
Closing price of stock (in dollars per share) | $ / shares				$ 26.38
Common stock | Capped Call
Debt Instrument [Line Items]
Exercise price (in dollars per share) | $ / shares			$ 39.66					$ 39.66
Exercise price premium percentage over last reported sales price								100.00%
Convertible Senior Notes
Debt Instrument [Line Items]
Principal amount			$ 575,000,000
Interest rate ( as a percent)			0.125%
Proceeds from issuance of convertible debt			$ 562,100,000
Conversion percentage of principal amount plus accrued and unpaid contingent interest			100.00%
Redemption percentage of principal amount of Notes to be redeemed			100.00%
Convertible debt, fair value based on the closing trading price per $100 of the Notes				$ 681,800,000	649,000,000
If-converted value				$ 577,300,000
Remaining term of the notes				14 months
Interest expense				$ 31,697,000	$ 29,525,000
Convertible Senior Notes | Any Fiscal Quarter Commencing After the Fiscal Quarter Ending on July 31, 2018
Debt Instrument [Line Items]
Threshold percentage of stock price trigger			130.00%
Convertible Senior Notes | Common stock
Debt Instrument [Line Items]
Number of convertible shares at initial conversion rate (in shares) | shares			21,884,155
Conversion ratio (in shares per $1,000 principal amount)			38.0594
Conversion price (in dollars per share) | $ / shares			$ 26.27
Convertible Senior Notes | Common stock | Any Fiscal Quarter Commencing After the Fiscal Quarter Ending on July 31, 2018
Debt Instrument [Line Items]
Threshold trading days | day			20
Threshold consecutive trading days | day			30
Threshold percentage of stock price trigger			130.00%
Convertible Senior Notes | Common stock | Five Business Day Period After any Five Consecutive Trading Day Period
Debt Instrument [Line Items]
Threshold consecutive trading days | day			5
Threshold percentage of stock price trigger			98.00%
Threshold business days | day			5
Convertible Senior Notes | Common stock | Immediately Preceding the Date on Which We Provide Notice of Redemption
Debt Instrument [Line Items]
Threshold trading days | day			2