The premium to redeem senior notes if a change of control occurs.

No definition available.

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- Definition

The minimum percentage of the outstanding senior notes that the trustee or holders must control before declaring the senior notes payable if a default event occurs.

+ References

No definition available.

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- Definition

The redemption price of the principal amount of senior notes, if redeemed using cash proceeds from equity offerings.

+ References

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

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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- Definition

Percentage of principal amount of debt redeemed.

+ References

No definition available.

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- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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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 outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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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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- Definition

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

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Debt (Issuance of 4.50% Senior Notes and Repurchase and Redemption of 4.875% Senior Notes) (Details) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended			36 Months Ended	96 Months Ended
	Aug. 19, 2020	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Aug. 15, 2023	Aug. 15, 2028	Aug. 04, 2020
Debt Instrument [Line Items]
Repayments of 4.875% senior notes			$ 400,000	$ 0	$ 0
Loss on extinguishment of debt		$ (5,600)	$ (5,569)	$ 0	$ 0
Senior Notes [Member] \| 4.50% Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, face amount								$ 600,000
Debt instrument, maturity date			Aug. 15, 2028
Debt instrument, interest rate (percentage)			4.50%
Debt issuance costs, gross			$ 8,900
Senior Notes [Member] \| 4.50% Senior Notes [Member] \| Forecast [Member]
Debt Instrument [Line Items]
Debt instrument, redemption price (percentage)						100.00%
Debt instrument, redemption price, percentage of principal amount redeemed						40.00%
Debt instrument redemption price percentage with equity offerings						104.50%
Debt instrument, change of control, redemption price, percent							101.00%
Debt instrument, minimum percentage of principal required to redeem in the event of default							30.00%
Senior Notes [Member] \| 4.875% Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date			Mar. 15, 2023
Debt instrument, interest rate (percentage)			4.875%
Repayments of 4.875% senior notes	$ 400,000
Debt instrument, redemption price (percentage)	100.813%
Loss on extinguishment of debt			$ 5,600
Payment for debt extinguishment, call premiums			3,300
Write off of deferred debt issuance cost			$ 2,300