Maximum percentage of the unsecured notes that can be redeem early prior to the specified date.

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

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

Fair value amount of debt instrument that was repurchased.

+ References

No definition available.

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- Definition

Amount of gain (loss) from the difference between the repurchase price of a debt instrument initially issued by the entity and the net carrying amount of the debt at the time of its repurchase.

+ 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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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The cash outflow to repay long-term debt that is not secured by collateral. Excludes repayments of tax exempt unsecured debt.

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Debt (Senior Unsecured Notes) (Details) - USD ($)									12 Months Ended
Debt (Senior Unsecured Notes) (Details) - USD ($)	Jan. 19, 2021	Dec. 17, 2020	Feb. 16, 2020	Jan. 16, 2020	Dec. 11, 2017	Aug. 14, 2017	Jul. 23, 2015	May 21, 2015	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	May 15, 2014
Debt Instrument [Line Items]
Redemption of debt									$ 1,185,096,000	$ 0	$ 145,170,000
Loss on extinguishment of debt									31,730,000	0	3,339,000
Cancellation of debt income									$ 27,302,000	$ 0	$ 0
2024 Notes
Debt Instrument [Line Items]
Debt interest rate									562.50%
2023 Notes
Debt Instrument [Line Items]
Debt interest rate									600.00%
2027 Notes
Debt Instrument [Line Items]
Debt interest rate									800.00%
2022 Notes
Debt Instrument [Line Items]
Debt interest rate									675.00%
2025 Notes
Debt Instrument [Line Items]
Debt interest rate									650.00%
2026 Notes
Debt Instrument [Line Items]
Debt interest rate									625.00%
2028 Notes
Debt Instrument [Line Items]
Debt interest rate									775.00%
Senior Unsecured Notes
Debt Instrument [Line Items]
Redemption of debt									$ 153,600,000
Cancellation of debt income									$ 27,300,000
Redemption percentage of debt with proceeds from equity									35.00%
Senior Unsecured Notes \| 2024 Notes
Debt Instrument [Line Items]
Senior unsecured notes, principal												$ 350,000,000
Debt interest rate												5.625%
Redemption percentage of debt with proceeds from equity									35.00%
Senior Unsecured Notes \| 2023 Notes
Debt Instrument [Line Items]
Senior unsecured notes, principal								$ 400,000,000
Debt interest rate		6.00%						6.00%
Redemption of debt		$ 316,500,000
Loss on extinguishment of debt									$ 8,200,000
Debt tendered and repaid		308,800,000
Redemption percentage of debt with proceeds from equity									35.00%
Senior Unsecured Notes \| 2023 Notes \| Subsequent Event
Debt Instrument [Line Items]
Redemption of debt	$ 80,900,000
Senior Unsecured Notes \| 7.875% senior unsecured notes due 2018
Debt Instrument [Line Items]
Debt interest rate								7.875%
Redemption of debt								$ 350,000,000
Senior Unsecured Notes \| 2027 Notes
Debt Instrument [Line Items]
Senior unsecured notes, principal		$ 750,000,000
Debt interest rate		8.00%
Proceeds from issuance of debt, net of discount		$ 737,000,000
Redemption percentage of debt with proceeds from equity									35.00%
Senior Unsecured Notes \| 2022 Notes
Debt Instrument [Line Items]
Senior unsecured notes, principal							$ 750,000,000
Debt interest rate				6.75%			6.75%
Redemption of debt			$ 222,100,000
Loss on extinguishment of debt									$ 23,500,000
Proceeds from issuance of debt, net of discount							$ 728,600,000
Debt tendered and repaid				$ 554,800,000
Senior Unsecured Notes \| 2025 Notes
Debt Instrument [Line Items]
Redemption percentage of debt with proceeds from equity									35.00%
Senior Unsecured Notes \| 2025 Notes \| Alkali Business
Debt Instrument [Line Items]
Senior unsecured notes, principal						$ 550,000,000
Debt interest rate						6.50%
Proceeds from issuance of debt, net of discount						$ 540,100,000
Senior Unsecured Notes \| 2026 Notes
Debt Instrument [Line Items]
Senior unsecured notes, principal					$ 450,000,000
Debt interest rate					6.25%
Proceeds from issuance of debt, net of discount					$ 441,800,000
Redemption percentage of debt with proceeds from equity									35.00%
Senior Unsecured Notes \| 2021 Notes
Debt Instrument [Line Items]
Debt interest rate					5.75%
Redemption of debt					$ 204,800,000
Senior Unsecured Notes \| 2028 Notes
Debt Instrument [Line Items]
Senior unsecured notes, principal				$ 750,000,000
Debt interest rate				7.75%
Proceeds from issuance of debt, net of discount				$ 736,700,000