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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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The average effective interest rate during the reporting period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Face (par) amount of the original debt instrument that was repurchased.

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Amount, after accumulated amortization, of debt discount.

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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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Weighted average interest rate of debt outstanding.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount of the fee for available but unused credit capacity under the credit facility.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer.

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Long-term Debt - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Debt Instrument [Line Items]
Offering discount cost		$ 5,788,000		$ 5,788,000		$ 3,952,000
Deferred financing costs		19,100,000		19,100,000		$ 19,645,000
Repayment of outstanding debt				882,905,000	$ 26,503,000
Debt instrument charge				5,334,000
Outstanding letters of credit		6,200,000		6,200,000
Interest expense including amortization of deferred financing costs and discounts		$ 11,600,000	$ 9,600,000	$ 32,500,000	$ 31,600,000
Weighted average effective interest rates		4.10%		4.10%		3.40%
2021 Term Loan, due 2028
Debt Instrument [Line Items]
Aggregate borrowing	$ 650,000,000	$ 646,750,000		$ 646,750,000
Debt instrument, maturity date	Mar. 26, 2028
Debt instrument available amount to borrow	$ 250,000,000
Offering discount cost	3,300,000
Deferred financing costs	$ 700,000
Debt instrument, interest rate during the period				1.00%
Debt instrument interest rate		3.40%		3.40%
2021 Term Loan, due 2028 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument interest rate per annum				3.25%
2021 Term Loan, due 2028 \| Base Rate
Debt Instrument [Line Items]
Debt instrument interest rate per annum				2.25%
Senior Notes, due 2029
Debt Instrument [Line Items]
Aggregate borrowing		$ 350,000,000		$ 350,000,000
Debt instrument, maturity date	Apr. 15, 2029
Deferred financing costs	$ 5,700,000
Debt instrument, aggregate principal amount	$ 350,000,000
Fixed interest rate		5.50%		5.50%
Debt instrument, payment terms				payable on April 15 and October 15 of each year (beginning on October 15, 2021)
Senior Notes, due 2029 \| Maximum
Debt Instrument [Line Items]
Redemption percentage				40.00%
2018 Term Loan
Debt Instrument [Line Items]
Aggregate borrowing						$ 865,642,000
Repayment of outstanding debt				$ 865,600,000
Debt instrument charge				5,300,000
Write off of preexisting deferred financing costs				4,000,000.0
Third party costs associated with issuance				1,300,000
PPP Loan
Debt Instrument [Line Items]
Aggregate borrowing		$ 2,933,000		2,933,000
Loan amount outstanding		2,900,000		2,900,000
Revolver
Debt Instrument [Line Items]
Debt instrument available amount to borrow		62,200,000		62,200,000
Revolving commitment				75,000,000
Outstanding borrowings		0		0
Outstanding letters of credit		$ 6,200,000		$ 6,200,000
Debt instrument, periodic payment, interest rate		0.375%		0.375%
Debt instrument fronting fees				$ 6,200,000
Participation and fronting fees percentage on outstanding letter of credit				1.38%
Revolver \| LIBOR 1.25%
Debt Instrument [Line Items]
Debt instrument interest rate per annum				1.25%
Revolver \| LIBOR 1.50%
Debt Instrument [Line Items]
Debt instrument interest rate per annum				1.50%
Revolver \| LIBOR 1.75%
Debt Instrument [Line Items]
Debt instrument interest rate per annum				1.75%
Revolver \| Base Rate 0.25%
Debt Instrument [Line Items]
Debt instrument interest rate per annum				0.25%
Revolver \| Base Rate 0.50%
Debt Instrument [Line Items]
Debt instrument interest rate per annum				0.50%
Revolver \| Base Rate 0.75%
Debt Instrument [Line Items]
Debt instrument interest rate per annum				0.75%