Long-Term Debt - Schedule of Notes Payable (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Aug. 15, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term debt	$ 583,827		$ 578,701
Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	0	$ (575,000)	(575,000)
Unamortized deferred financing and issuance costs - term loan	0		(40,621)
Revolving credit facilities
Debt Instrument [Line Items]
Long-term debt, gross	(146,000)		(47,486)
Unamortized deferred financing and issuance costs - term loan	(4,673)		(3,164)
2018 Term Loan Facility
Debt Instrument [Line Items]
Long-term debt, gross	(450,000)		0
Unamortized deferred financing and issuance costs - term loan	$ (7,500)		$ 0

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

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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