The principal amount of notes used in the determination of the initial conversion rate, which is subject to adjustment.

No definition available.

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- Definition

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

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- Definition

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

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- Definition

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

+ References

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- Definition

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.

+ References

No definition available.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.

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Debt - Narrative (Details)	3 Months Ended		9 Months Ended
Debt - Narrative (Details)	Sep. 30, 2021 USD ($) $ / shares	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) $ / shares	Sep. 30, 2020 USD ($)
Debt Instrument [Line Items]
Loss on debt extinguishment	$ 0	$ 26,736,000	$ 0	$ 26,736,000
Total interest payments			$ 60,000,000	$ 44,200,000
9% Convertible Junior Subordinated Debentures
Debt Instrument [Line Items]
Conversion rate (in shares per $1,000 note)			0.0755932
Principal amount of notes used in determining conversion rate	$ 1,000		$ 1,000
Convertible debt, conversion price (in dollars per share) \| $ / shares	$ 13.23		$ 13.23
Stated interest rate	9.00%		9.00%
Senior Notes \| 5.75% Senior Notes Due 2023
Debt Instrument [Line Items]
Stated interest rate	5.75%		5.75%
Senior Notes \| 5.25% Senior Notes Due 2028
Debt Instrument [Line Items]
Stated interest rate	5.25%		5.25%