Ratio of adjusted earnings before interest, taxes, depreciation and amortization to cash interest charges

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The percentage of the Term Loan that is required as periodic payments including both interest and principal payments

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Swing Line Facility included within Revolving Credit Facility

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

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

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LONG-TERM OBLIGATIONS - Narrative (Details)			6 Months Ended	10 Months Ended	11 Months Ended	12 Months Ended			14 Months Ended	36 Months Ended
LONG-TERM OBLIGATIONS - Narrative (Details)	Feb. 04, 2019 USD ($)	Jun. 29, 2018 USD ($)	Dec. 31, 2018 USD ($)	Feb. 04, 2024	Dec. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Mar. 31, 2020	Mar. 31, 2023
Debt Instrument [Line Items]
Principal payments of long-term obligations						$ 5,624,000	$ 91,450,000	$ 5,319,000
Payments of Financing Costs						$ 847,000	2,433,000	$ 0
Consolidated leverage ratio					1.0	1.0
Consolidated interest coverage ratio					17.2	17.2
Principal amount			$ 10,900,000		$ 245,700,000	$ 245,700,000	10,900,000
Credit Agreement [Member]
Debt Instrument [Line Items]
Swing Line Facility		$ 25,000,000.0
Letters of Credit, maximum commitment		60,000,000.0
Prior Credit Agreement [Member]
Debt Instrument [Line Items]
Principal payments of long-term obligations		127,500,000
Amended Credit Agreement [Member]
Debt Instrument [Line Items]
Maturity date	Feb. 04, 2024
Additional interest rate above Federal Fund rate (percent)	0.50%
Additional interest rate above Eurodollar Rate (percent)	1.00%
Payments of Financing Costs						$ 800,000
Percentage of consolidated revenue and adjusted EBITDA that guarantor wholly-owned subsidiaries represent	95.00%
Percentage of adjusted EBITDA that guarantor subsidiaries represent	70.00%
Amended Credit Agreement [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Proceeds Received From Loan Party Of Subsidiary	$ 5,000,000
Amended Credit Agreement [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Description of variable rate basis	Fluctuating rate per annum equal to the highest of (a) the federal funds rate plus 0.50% per annum, (b) the prime rate of interest established by the Administrative Agent, and (c) the Eurodollar Rate for an interest period of one month plus 1% per annum.
Basis spread on variable rate (percent)						0.50%
Amended Credit Agreement [Member] \| Eurodollar [Member]
Debt Instrument [Line Items]
Description of variable rate basis	Rate at which Eurodollar deposits in the London interbank market for an interest period of one, two, three or six months
Basis spread on variable rate (percent)						1.50%
Promissory Notes [Member]
Debt Instrument [Line Items]
Principal amount			1,100,000		$ 600,000	$ 600,000	1,100,000
Promissory Notes [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate (percent)					4.30%	4.30%
Promissory Notes [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate (percent)					7.00%	7.00%
Finance Lease [Member]
Debt Instrument [Line Items]
Principal amount			2,300,000		$ 3,400,000	$ 3,400,000	2,300,000
Finance Lease [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate (percent)					5.20%	5.20%
Finance Lease [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate (percent)					14.30%	14.30%
One Hundred Seventy Five Million Term Loan Facility [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Principal amount					$ 175,000,000	$ 175,000,000
Weighted Average Interest Rate					3.80%
Maturity date						Feb. 04, 2024
Principal amount			$ 0		$ 171,700,000	$ 171,700,000	0
One Hundred Seventy Five Million Term Loan Facility [Member] \| Amended Credit Agreement [Member]
Debt Instrument [Line Items]
Principal amount	$ 175,000,000.0
Five Hundred Fifty Million Revolving Credit Facility [Member] \| Credit Agreement [Member]
Debt Instrument [Line Items]
Principal amount		550,000,000.0
Credit facility, maximum additional borrowing capacity		$ 125,000,000.0
Credit facility, maximum allowable consolidated leverage ratio multiple		0.5
Credit facility maximum allowable consolidated leverage ratio		3.0
Maturity date		Jun. 29, 2023
Five Hundred Fifty Million Revolving Credit Facility [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Principal amount					550,000,000	$ 550,000,000
Weighted Average Interest Rate			3.80%			4.00%
Maturity date						Feb. 04, 2024
Remaining availability under the revolving credit facility					449,800,000	$ 449,800,000
Principal amount			$ 7,500,000		70,000,000.0	70,000,000.0	$ 7,500,000
Five Hundred Fifty Million Revolving Credit Facility [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Outstanding letters of credit					$ 30,200,000	$ 30,200,000
Five Hundred Fifty Million Revolving Credit Facility [Member] \| Amended Credit Agreement [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	725,000,000.0
Principal amount	$ 550,000,000.0
Subsequent Event [Member] \| One Hundred Seventy Five Million Term Loan Facility [Member] \| Amended Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument Periodic Payment Percentage				1.875%					0.625%	1.25%