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

No definition available.

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- Definition

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.

+ References

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- Definition

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 210
-SubTopic 10
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- Definition

Amount of the required periodic payments applied to principal.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

+ References

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

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

+ References

No definition available.

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- Definition

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.

+ References

No definition available.

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- Definition

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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- Definition

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

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Debt (Term Facility and Revolving Credit Facility) (Details) - USD ($)		1 Months Ended	3 Months Ended		9 Months Ended
	Jan. 15, 2014	Dec. 31, 2017	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Jul. 26, 2018	Dec. 20, 2017	Sep. 30, 2017
Line of Credit Facility [Line Items]
Unamortized discount (premium) and debt issuance costs, net			$ 13,146,000	$ 14,129,000
Long-term debt, gross			958,565,000	953,759,000
Letters of credit outstanding, amount				11,777,000
Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, remaining borrowing capacity			125,000,000	125,000,000			$ 125,000,000	$ 95,000,000
Letter of Credit
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity								$ 35,000,000
Debt instrument, unused borrowing capacity, amount			110,459,000	113,223,000
Letters of credit outstanding, amount			$ 14,541,000	11,777,000
Minimum
Line of Credit Facility [Line Items]
Debt instrument, interest rate, stated percentage			6.26%
Maximum
Line of Credit Facility [Line Items]
Debt instrument, interest rate, stated percentage			7.39%
First Lien Term Facility, due December 20, 2024
Line of Credit Facility [Line Items]
Debt instrument, term	7 years
Unamortized discount (premium) and debt issuance costs, net			$ 13,146,000	14,129,000
First Lien Term Facility, due December 20, 2024 \| Term Loan
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 505,000,000
Debt instrument, interest rate, stated percentage			5.49%
Debt instrument, periodic payment, principal				2,369,000	$ 1,991,000
Line of credit facility, remaining borrowing capacity						$ 150,000,000
First Lien Term Facility, due December 20, 2024 \| Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 75,000,000
Second Lien Term Facility
Line of Credit Facility [Line Items]
Debt instrument, term	8 years
Second Lien Term Facility \| Term Loan
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 75,000,000
London Interbank Offered Rate (LIBOR) \| First Lien Term Facility, due December 20, 2024 \| Term Loan
Line of Credit Facility [Line Items]
Debt instrument, interest rate, stated percentage			2.49%
Debt instrument, basis spread on variable rate			3.00%
Line of Credit \| Letter of Credit
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 45,000,000				$ 45,000,000
Letters of credit outstanding, amount			241,000	64,000
Revolving Credit Facility
Line of Credit Facility [Line Items]
Long-term debt, gross			$ 0	$ 0
Ratings Condition Period \| London Interbank Offered Rate (LIBOR) \| Maximum \| Term Loan
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		3.75%
Other than Ratings Condition Period \| London Interbank Offered Rate (LIBOR) \| Minimum \| Term Loan
Line of Credit Facility [Line Items]
Debt instrument, basis spread on variable rate		3.00%