Long Term Debt - Components of Debt (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019	Jul. 31, 2018
Debt Instrument [Line Items]
Total long-term debt	$ 400,000,000	$ 400,000,000
Less: Unamortized deferred financing cost	(9,853,000)	(10,165,000)
Total debt, net	390,147,000	389,835,000
Line of Credit \| Revolving credit facility
Debt Instrument [Line Items]
Total long-term debt	0	0
Senior Notes \| 6.0% Senior Notes due 2026
Debt Instrument [Line Items]
Total long-term debt	$ 400,000,000	$ 400,000,000
Stated interest rate	6.00%		6.00%

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

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

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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

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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