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

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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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Nominal or face amount used to calculate payment on derivative.

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Maximum amount borrowed under the credit facility at any time during the period.

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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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Debt - Credit Facilities, Narrative (Details) $ in Thousands				1 Months Ended		3 Months Ended
	Mar. 31, 2020 USD ($)	Mar. 19, 2020 USD ($)	Mar. 16, 2020 USD ($)	Oct. 31, 2018 USD ($)	Oct. 28, 2017 USD ($)	May 02, 2020 USD ($) agreement	Feb. 01, 2020 USD ($)	May 04, 2019 USD ($)	Apr. 30, 2018 USD ($)	Jun. 18, 2014 USD ($)
Debt
Amount drawn						$ 310,000
Financial Standby Letter of Credit
Debt
Letters of credit issued and outstanding						22,900
Amended ABL Facility
Debt
Borrowings outstanding						385,000	$ 50,000	$ 48,500
Senior Notes
Debt
Aggregate principal amount of debt issued										$ 600,000
Borrowings outstanding						$ 173,816	173,816	228,607
Senior Notes \| Upon the occurrence of certain specific changes of control
Debt
Redemption price as a percentage of the principal amount of debt						101.00%
Incremental Term Loan Facilities
Debt
Credit facility						$ 250,000
2014 Credit Facilities \| Original Term Loan
Debt
Aggregate principal amount of debt issued										1,100,000
2014 Credit Facilities \| Amended ABL Facility
Debt
Credit facility					$ 550,000
Weighted average interest rate (as a percent)						1.90%
Total credit facility with expansion feature					$ 650,000
Amount drawn	$ 25,000	$ 25,000	$ 260,000
Borrowings outstanding						$ 385,000
Maximum borrowing outstanding under the ABL Facility during the period						385,000
Borrowings available under credit facility						$ 88,800
2014 Credit Facilities \| Amended ABL Facility \| Minimum
Debt
Fees on amounts available to be drawn (as a percent)					1.25%
Fees on unused commitments (as a percent)					0.25%
2014 Credit Facilities \| Amended ABL Facility \| Maximum
Debt
Varying interest rate margin (as a percent)					1.75%
Fees on amounts available to be drawn (as a percent)					1.75%
2014 Credit Facilities \| Amended ABL Facility \| LIBOR
Debt
Margin added to Base rate (as a percent)					1.00%
Period for variable rate basis					1 month
2014 Credit Facilities \| Amended ABL Facility \| Federal funds rate
Debt
Margin added to Base rate (as a percent)					0.50%
2014 Credit Facilities \| ABL Facility
Debt
Credit facility										$ 500,000
2018 Credit Facilities \| Amended New Term Loan
Debt
Reduction in the interest rate margin				0.25%
Total variable interest rate (as a percent)						4.25%
Number of interest rate swap agreements \| agreement						2
Deferred financing costs				$ 1,100
Weighted average interest rate (as a percent)						5.62%
Borrowings outstanding						$ 877,130	$ 881,630	$ 886,130
2018 Credit Facilities \| Amended New Term Loan \| Interest rate swap
Debt
Notional amount of interest rate swaps						$ 705,000
Percentage of variable interest rate converted to a fixed rate						80.00%
2018 Credit Facilities \| Amended New Term Loan \| LIBOR
Debt
Margin added to Base rate (as a percent)				3.25%		3.25%
Actual LIBOR rate (as a percent)						0.30%
2018 Credit Facilities \| Amended New Term Loan \| Base Rate
Debt
Margin added to Base rate (as a percent)				2.25%
2018 Credit Facilities \| New Term Loan
Debt
Aggregate principal amount of debt issued									$ 900,000
Uncommitted borrowings						$ 250,000
Secured leverage ratio						2.5
Amortized percentage						1.00%
2018 Credit Facilities \| New Term Loan \| LIBOR
Debt
Floor rate (as a percent)						1.00%
2018 Credit Facilities \| New Term Loan \| Base Rate
Debt
Floor rate (as a percent)						2.00%