Stock repurchase program number of shares authorized to be repurchased percent.

No definition available.

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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

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- Definition

Date the declared dividend will be paid, in CCYY-MM-DD format.

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- Definition

Date the dividend to be paid was declared, in CCYY-MM-DD format.

+ References

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- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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No definition available.

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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

The cash outflow for cost incurred directly with the issuance of an equity security.

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- Definition

The cash inflow from the additional capital contribution to the entity.

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- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

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- Definition

Amount of decrease of par value, additional paid in capital (APIC) and retained earnings of common and preferred stock retired from treasury when treasury stock is accounted for under the cost method.

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- Definition

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

+ References

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

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Number of shares of common and preferred stock retired from treasury during the period.

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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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Equity (Narrative) (Details) - USD ($)			1 Months Ended	3 Months Ended					12 Months Ended
Equity (Narrative) (Details) - USD ($)	Jan. 15, 2021	Dec. 17, 2020	Feb. 08, 2019	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	May 24, 2018	Dec. 31, 1995
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Payment for issuance costs									$ 200,000
Stock repurchase program, number of shares authorized to be repurchased, percent												10.00%	10.00%
Treasury stock, shares, acquired			549						39,790,928
Treasury stock, value, acquired, cost method			$ 17,300						$ 1,700,000,000
Treasury stock acquired, average cost per share									$ 41.54
Treasury stock, shares, retired									33,475,406
Treasury stock, retired, cost method, amount									$ 1,200,000,000
Treasury stock, shares				223,451				330,690	223,451	330,690
Stock repurchase program, remaining authorized repurchase amount (in shares)				4,256,174					4,256,174
Treasury stock, value									$ 2,793,000	$ 3,308,000	$ 7,451,000
Cash dividends per share (in dollar per share)				$ 0.01	$ 0.01	$ 0.01	$ 0.25	$ 0.55	$ 0.28	$ 2.20	$ 2.20
Subsequent Event [Member]
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Cash dividends per share (in dollar per share)	$ 0.01
Dividends payable, date declared	Jan. 15, 2021
Dividends payable, date to be paid	Feb. 16, 2021
Dividends payable, date of record	Jan. 25, 2021
Stock Rights [Member]
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Repurchase of common shares (shares)									70,929
Treasury stock, value									$ 1,700,000
Wells Fargo Securities, LLC [Member]
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Sale of common shares									$ 0
At-The-Market Offerings [Member] \| Wells Fargo Securities, LLC [Member]
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Sale of common shares		$ 60,000,000.0