Debt Instrument, Covenant Requirement, Leverage Ratio, Maximum

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- Definition

Repayment of Unsecured Debt, Early Redemption Fee

+ References

No definition available.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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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

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders. This amount is generally an adjustment considered in the computation of earnings per share.

+ References

No definition available.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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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.

+ References

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- Definition

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

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Long-term debt - Narrative (Details)					9 Months Ended
Long-term debt - Narrative (Details)	Oct. 13, 2020 USD ($)	Jun. 11, 2020	Jun. 10, 2020	Feb. 11, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Oct. 31, 2020 USD ($)	Sep. 10, 2020 USD ($)	Jan. 09, 2020 USD ($)	Dec. 31, 2019 USD ($)
Debt Instrument [Line Items]
Cash and cash equivalents					$ 164,586,000					$ 29,404,000
Repayments of aggregate principal amount of debt					$ 1,085,000,000	$ 75,000,000
Senior Notes
Debt Instrument [Line Items]
Early redemption fees				$ 13,800,000
Write off of unamortized financing fees and discounts				7,900,000
Senior Notes Bearing Interest at 4.625 Percent Due March 2028 \| Senior Notes
Debt Instrument [Line Items]
Principal amount of unsecured notes				$ 1,000,000,000.0					$ 1,000,000,000.0
Stated interest rate (as a percent)									4.625%
Unsecured notes bearing fixed rate interest at 5.125% due July 2020 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)				5.125%	5.125%					5.125%
Repayments of unsecured debt				$ 310,000,000.0
Unsecured notes bearing fixed rate interest at 6.375% due October 2023 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)				6.375%	0.06375%					0.06375%
Repayments of unsecured debt				$ 650,000,000.0
Borrowings under revolving credit agreement expiring August 2024
Debt Instrument [Line Items]
Maximum leverage ratio		5.25	5.50
Amended and Restated Competitive Advance and Revolving Credit Agreement \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Unused borrowing capacity					$ 1,310,000,000
Maximum borrowing capacity under credit facility					$ 1,510,000,000
Unsecured notes bearing fixed rate interest at 4.750% due March 2026 \| Senior Notes
Debt Instrument [Line Items]
Principal amount of unsecured notes								$ 550,000,000
Stated interest rate (as a percent)					0.0475%			4.75%		0.0475%
Unsecured notes bearing fixed rate interest at 5.500% due September 2024 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)					0.055%					0.055%
Unsecured notes bearing fixed rate interest at 5.500% due September 2024 \| Senior Notes \| Subsequent Event
Debt Instrument [Line Items]
Unused borrowing capacity							$ 950,000,000
Repayments of aggregate principal amount of debt	$ 188,000,000
Redemption premium	3,400,000
Unsecured notes bearing fixed rate interest at 4.875% due September 2021 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)					0.04875%					0.04875%
Unsecured notes bearing fixed rate interest at 4.875% due September 2021 \| Senior Notes \| Subsequent Event
Debt Instrument [Line Items]
Repayments of aggregate principal amount of debt	$ 350,000,000