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

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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- Definition

Percentage of principal amount of debt redeemed.

+ 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

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 Debt - Previous Senior Secured Loan Facilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Nov. 10, 2017	Apr. 30, 2014
Debt Instrument
Long-term Debt, Gross	$ 946,000	$ 950,000
Line of Credit Facility, Maximum Borrowing Capacity	300,000
Loss on extinguishment of debt	$ 0	2,429	$ 20,687
Senior unsecured notes due 2026
Debt Instrument
Percentage payment of Principle amount	100.00%
Long-term Debt, Gross	$ 550,000	550,000		$ 550,000
Senior secured term loan facility due 2021
Debt Instrument
Long-term Debt, Gross					$ 460,000
Revolving Credit Facility
Debt Instrument
Line of Credit Facility, Maximum Borrowing Capacity		75,000
Previous Senior Secured Loan Facilities
Debt Instrument
Loss on extinguishment of debt		$ 2,300