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Share-Based Compensation Plans - Summary of Activity Related to Stock Options Granted under Company's Incentive Plan (Details) - Stock Options - $ / shares shares in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Total Shares |  |  |
Total Shares outstanding, Beginning balance | 176 | 232 | 444
Total Shares, Granted | 0 | 0 | 0
Total Shares, Exercised | (176) | (56) | (212)
Total Shares outstanding, Ending balance |  | 176 | 232
Weighted Average Exercise Price Per Share |  |  |
Weighted Average Exercise Price per Share Outstanding, Beginning balance | $ 15.34 | $ 15.42 | $ 16.66
Weighted Average Exercise Price per Share, Exercised | $ 15.34 | 15.66 | 18.01
Weighted Average Exercise Price per Share Outstanding, Ending balance |  | $ 15.34 | $ 15.42

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- Definition Net number of share options (or share units) granted during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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