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Line of Credit, Long-Term Debt and Finance Lease Obligations - Additional Information (Detail) - USD ($) $ in Thousands		12 Months Ended
	Mar. 25, 2020	Dec. 31, 2020	Dec. 31, 2019	Feb. 28, 2019	Nov. 30, 2018	Dec. 31, 2015
Debt Instrument [Line Items]
Line of Credit facility, borrowing capacity		$ 37,500
Long term debt		1,700,000	$ 1,700,000
Line of Credit facility, available balance		$ 899,900
Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, variable interest rate		0.15%
Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, variable interest rate		0.20%
Alternate Base Rate [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate		Federal Funds Rate plus 1/2 of 1.00%
Alternate Base Rate [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate		LIBOR for an interest period of one month plus 1.00%
Debt instrument, variable interest rate		1.00%
Applicable Margin Rate [Member] | LIBOR [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, variable interest rate		0.125%
Applicable Margin Rate [Member] | LIBOR [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, variable interest rate		0.75%
Unsecured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit facility, borrowing capacity		$ 1,200,000
Letters of Credit [Member]
Debt Instrument [Line Items]
Letters of credit outstanding amount		$ 100
5.25% Senior Unsecured Notes Due 2023 [Member]
Debt Instrument [Line Items]
Aggregate principal amount of debt						$ 750,000
Debt instrument interest rate		5.25%				5.25%
Debt instrument maturity date description		payable semi-annually in arrears on June 1 and December 1
Debt instrument, maturity year		2023
Interest accrued periodically		$ 39,400
5.25% Senior Unsecured Notes Due 2023 [Member] | Change In Control [Member]
Debt Instrument [Line Items]
Redemption percentage of principal amount		101.00%
5.25% Senior Unsecured Notes Due 2023 [Member] | Redemption in 2020 [Member]
Debt Instrument [Line Items]
Redemption percentage of principal amount		101.313%
6.25% Senior Unsecured Notes Due 2027 [Member]
Debt Instrument [Line Items]
Aggregate principal amount of debt				$ 500,000	$ 500,000
Debt instrument interest rate		6.25%			6.25%
Debt instrument maturity date description		payable semi-annually in arrears on January 15 and July 15
Debt instrument, maturity year		2027
Long term debt		$ 1,000,000
Interest accrued periodically		$ 62,500
6.25% Senior Unsecured Notes Due 2027 [Member] | Change In Control [Member]
Debt Instrument [Line Items]
Redemption percentage of principal amount		101.00%
6.25% Senior Unsecured Notes Due 2027 [Member] | Redemption Before 2022 [Member]
Debt Instrument [Line Items]
Redemption percentage of principal amount		100.00%
6.25% Senior Unsecured Notes Due 2027 [Member] | Redemption Before 2022 [Member] | Redeem up to 35% of Aggregate Principal Amount [Member]
Debt Instrument [Line Items]
Redemption percentage of principal amount		35.00%
Redemption price percentage of aggregate principal amount redeemed		106.25%
6.25% Senior Unsecured Notes Due 2027 [Member] | Redemption in 2022 [Member]
Debt Instrument [Line Items]
Redemption percentage of principal amount		104.688%
6.25% Senior Unsecured Notes Due 2027 [Member] | Redemption in 2023 [Member]
Debt Instrument [Line Items]
Redemption percentage of principal amount		103.125%
6.25% Senior Unsecured Notes Due 2027 [Member] | Redemption in 2024 [Member]
Debt Instrument [Line Items]
Redemption percentage of principal amount		101.563%
6.25% Senior Unsecured Notes Due 2027 [Member] | Redemption in 2025 and Thereafter [Member]
Debt Instrument [Line Items]
Redemption percentage of principal amount		100.00%
Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit facility, borrowing capacity	$ 300,000
Estimated EBITDA	$ 139,200
Credit Agreement [Member] | Forecast For First Quarter Of 2021 [Member]
Debt Instrument [Line Items]
Leverage ratio	2020
Credit Agreement [Member] | Forecast For Fourth Quarter Of 2020 [Member]
Debt Instrument [Line Items]
Leverage ratio	4.75:1:00
Credit Agreement [Member] | Minimum [Member]
Debt Instrument [Line Items]
Leverage ratio	4.50:1:00
Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Leverage ratio	5.00:1:00

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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