Long-Term Debt - 2018 Redemption (Details) - USD ($)		12 Months Ended
Dec. 19, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Aggregate principle amount	$ 250,000,000.0
Interest rate	5.125%
Write-off of unamortized deferred financing costs	$ 1,400,000
Redemption cost for early extinguishment of debt	$ 6,400,000	$ 0	$ 6,408,000	$ 0

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

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

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- Definition

Reflects the difference between the fair value of payments made to legally extinguish a debt and its carrying value at that time. This item excludes the write-off of amounts previously capitalized as debt issuance costs.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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