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Shareholders' Equity Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2023
Shares repurchased under equity repurchase program | 377 |  |  |
Depository Shares, Issued |  |  | 400 |
Preferred Stock, Dividend Rate, Percentage |  |  | 5.625% |
Preferred Stock, Liquidation Preference, Value |  |  | $ 100 |
Preferred Stock, Liquidation Preference Per Share |  |  | $ 1,000 |
Proceeds from Issuance of Preferred Stock, Preference Stock, and Warrants |  |  | $ 400,000 |
Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants |  |  | $ 394,000 |
Stock Option |  |  |  |
Common stock shares reserved for future issuance |  |  |  | 4,300
Common Stock |  |  |  |
Shares repurchased under equity repurchase program | 400 | 9,500 |  |
Equity Repurchase Program | Common Stock |  |  |  |
Shares repurchased under equity repurchase program |  | 9,500 |  |
Average cost per share of shares repurchased under equity repurchase program | $ 92.61 | $ 75.82 |  |

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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-4 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-13 + Details
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