Actual fixed charge coverage ratio

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Debt Instrument, Periodic Payment, Percent

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Original issue discount

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Required minimum consolidated fixed charge coverage ratio

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Amount of short-term and long-term debt and lease obligation.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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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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Description of the frequency of periodic payments (monthly, quarterly, annual).

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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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No definition available.

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

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

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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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No definition available.

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

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Senior debt (Details) - USD ($)	3 Months Ended		6 Months Ended
Senior debt (Details) - USD ($)	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Feb. 17, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Senior debt, net	$ 872,812,000		$ 872,812,000
Original issue discount					$ 4,400,000
Debt issuance costs					30,200,000
Other charges	72,653,000	$ 7,921,000	123,772,000	$ 9,624,000
Letters of credit, amount outstanding	87,400,000		$ 87,400,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.375%
Line of credit commitment fee			$ 900,000
2021	4,375,000		4,375,000
2022	8,750,000		8,750,000
2023	8,750,000		8,750,000
2024	8,750,000		8,750,000
2025	8,750,000		8,750,000
Thereafter	833,437,000		833,437,000
Debt Issuance Costs [Member]
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense	26,600,000		26,600,000		25,300,000	$ 3,000,000.0
Other charges			4,900,000
Original Issue Discount [Member]
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense	4,200,000		4,200,000
Term loan credit [Member]
Debt Instrument [Line Items]
Senior secured term loan facility					875,000,000
Senior debt, net	872,812,000		$ 872,812,000			$ 197,500,000
Debt Instrument, Maturity Date			Feb. 17, 2028
Debt Instrument, Frequency of Periodic Payment			quarterly
Debt Instrument, Periodic Payment, Percent			1.00%
2021	4,375,000		$ 4,375,000
2022	8,750,000		8,750,000
2023	8,750,000		8,750,000
2024	8,750,000		8,750,000
2025	8,750,000		8,750,000
Thereafter	833,437,000		$ 833,437,000
Term loan credit [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
Basis margin on variable rate			4.00%
Term loan credit [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis margin on variable rate			0.75%
ABL credit facility [Member]
Debt Instrument [Line Items]
Revolving credit facility commitments					$ 550,000,000
Senior debt, net	0		$ 0
ABL Credit Facility amount available	$ 462,600,000		$ 462,600,000
Debt Instrument, Maturity Date			Feb. 17, 2026
Actual margin on variable rate	1.875%		1.875%
Required consolidated fixed charge coverage ratio, minimum	1.10		1.10
Actual fixed charge coverage ratio	1.72		1.72
2021	$ 0		$ 0
2022	0		0
2023	0		0
2024	0		0
2025	0		0
Thereafter	$ 0		$ 0
Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.375%
Maximum [Member] \| ABL credit facility [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
Basis margin on variable rate			2.00%
Minimum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.25%
Minimum [Member] \| ABL credit facility [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
Basis margin on variable rate			1.50%