Long Term Debt - 2026 Senior Notes Narrative (Details) - Senior Notes - 6.0% Senior Notes due 2026 - USD ($)	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019	Jul. 31, 2018
Debt Instrument [Line Items]
Aggregate principal amount			$ 400,000,000.0
Stated interest rate	6.00%		6.00%
Redemption price, percentage of principal amount of Notes redeemed	100.00%
Deferred financing costs incurred in connection with securing the 2026 Senior Notes	$ 11,800,000
Interest expense	$ 6,300,000	$ 6,300,000

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

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