Debt Issuance Cost Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Debt Issuance Costs, Gross	$ 0		$ 63
Amortization of Debt Issuance Costs	84
Accumulated Amortization, Debt Issuance Costs			(89)
Debt Issuance Costs, Net	$ 2,926	$ 3,010	$ 3,261	$ 3,287

Amount of accumulated amortization of debt issuance costs.

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Amount of amortization expense attributable to debt issuance costs.

+ References

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

+ References

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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.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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