The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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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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The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Other Liabilities (Convertible Senior Notes) (Details)		12 Months Ended
Other Liabilities (Convertible Senior Notes) (Details)	Jun. 03, 2019 USD ($) $ / shares	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Proceeds from issuance of Convertible Senior Notes		$ 223,311,000	$ 0	$ 0
Convertible Debt
Debt Instrument [Line Items]
Proceeds from issuance of Convertible Senior Notes	$ 230,000,000.0
Proceed from senior notes net of offering expenses and underwriting discount	$ 223,300,000
Stated interest rate	6.25%
Conversion ratio	125.7387
Debt instrument, face amount	$ 1,000
Conversion price (in dollars per share) \| $ / shares	$ 7.95
Effective interest rate	6.94%
Additional Convertible Senior Notes
Debt Instrument [Line Items]
Proceeds from issuance of Convertible Senior Notes	$ 30,000,000.0