Required periodic principal payments per loan year as a percentage of total principal.

No definition available.

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- Definition

Maximum aggregate commitments with respect to an increase in the Revolving Credit Facility, additional term loans, or a combination thereof that may be requested under the Credit Agreement.

+ References

No definition available.

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- Definition

Amount of amortization expense attributable to debt issuance costs.

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- Definition

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

+ References

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.

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- Definition

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

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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

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

+ References

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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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

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.

+ References

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

+ References

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

Amount of cash inflow from issuance of long-term debt classified as other.

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Amount of cash outflow for the payment of debt classified as other, maturing after one year or the operating cycle, if longer.

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Long-Term Debt - Credit Agreement (Details) - USD ($)		1 Months Ended		3 Months Ended		9 Months Ended
Long-Term Debt - Credit Agreement (Details) - USD ($)	Jun. 30, 2017	Jun. 30, 2017	Feb. 29, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Debt Instrument [Line Items]
Principal amount				$ 530,508,000		$ 530,508,000
Proceeds from term loan						100,000,000	$ 0
Repayment of previous term loan						193,508,000	30,500,000
Gain (loss) on early extinguishment of long-term debt				0	$ 244,000	(397,000)	546,000
Amortization of debt issuance costs						5,238,000	$ 6,430,000
Term Loan Maturing June 2018 [Member]
Debt Instrument [Line Items]
Principal amount				0		0		$ 192,258,000
Repayment of previous term loan	$ 180,000,000
Gain (loss) on early extinguishment of long-term debt		$ (400,000)
Term Loan Maturing June 2020 [Member]
Debt Instrument [Line Items]
Principal amount	100,000,000	100,000,000		98,750,000		98,750,000		$ 0
Proceeds from term loan	$ 100,000,000
Frequency of periodic payment	quarterly
Term Loan Maturing June 2020 [Member] \| First Loan Year [Member]
Debt Instrument [Line Items]
Periodic principal payment (as a percent)	5.00%
Term Loan Maturing June 2020 [Member] \| Second Loan Year [Member]
Debt Instrument [Line Items]
Periodic principal payment (as a percent)	10.00%
Term Loan Maturing June 2020 [Member] \| Third Loan Year [Member]
Debt Instrument [Line Items]
Periodic principal payment (as a percent)	15.00%
Term Loan Maturing June 2020 [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.25%
Term Loan Maturing June 2020 [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	4.25%
Term Loan and Revolving Loans [Member]
Debt Instrument [Line Items]
Maturity date	Jun. 30, 2020
Revolving Credit Facility Maturing June 2020 [Member]
Debt Instrument [Line Items]
Borrowing capacity	$ 150,000,000	150,000,000
Available borrowing capacity				69,900,000		69,900,000
Letters of credit issued				$ 4,000,000		$ 4,000,000
Commitment fee percentage	0.50%
Amortization of debt issuance costs		1,600,000	$ 2,500,000
Revolving Credit Facility Maturing June 2020 [Member] \| Base Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.75%
Revolving Credit Facility Maturing June 2020 [Member] \| Base Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.25%
Revolving Credit Facility Maturing June 2020 [Member] \| LIBOR [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.75%
Revolving Credit Facility Maturing June 2020 [Member] \| LIBOR [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	4.25%
Letter of Credit [Member]
Debt Instrument [Line Items]
Borrowing capacity	$ 25,000,000	25,000,000
Line of Credit [Member]
Debt Instrument [Line Items]
Additional commitments	$ 100,000,000	$ 100,000,000