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Stock-Based Compensation - Schedule of Performance Share Awards Activity (Details) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Employee Performance Share Awards |  |  |
Shares |  |  |
Outstanding at beginning of period (in shares) | 1,610,124 | 1,259,287 | 1,280,021
Granted (in shares) | 769,594 | 722,500 | 526,730
Issued and fully vested (in shares) | (481,784) | (334,640) | (388,370)
Forfeited (in shares) | (39,830) | (37,023) | (159,094)
Outstanding at end of period (in shares) | 1,858,104 | 1,610,124 | 1,259,287
Weighted- Average Grant Date Fair Value per Share |  |  |
Outstanding at beginning of period (in dollars per share) | $ 20.31 | $ 23.64 | $ 22.22
Granted (in dollars per share) | 18.76 | 15.60 | 24.95
Issued and fully vested (in dollars per share) | 23.25 | 22.60 | 20.49
Forfeited (in dollars per share) | 18.94 | 20.38 | 24.29
Outstanding at end of period (in dollars per share) | $ 18.93 | $ 20.31 | $ 23.64
Hybrid Performance Shares |  |  |
Shares |  |  |
Outstanding at beginning of period (in shares) | 903,551 | 692,788 | 662,388
Granted (in shares) | 423,171 | 506,412 | 315,029
Issued and fully vested (in shares) | (1,326,722) | (295,649) | (284,629)
Forfeited (in shares) | 0 | 0 | 0
Outstanding at end of period (in shares) | 0 | 903,551 | 692,788
Weighted- Average Grant Date Fair Value per Share |  |  |
Outstanding at beginning of period (in dollars per share) | $ 19.41 | $ 23.90 | $ 22.48
Granted (in dollars per share) | 18.58 | 15.60 | 24.95
Issued and fully vested (in dollars per share) | 19.14 | 23.40 | 21.78
Forfeited (in dollars per share) | 0 | 0 | 0
Outstanding at end of period (in dollars per share) | $ 0 | $ 19.41 | $ 23.90
TSR Performance Share Awards |  |  |
Shares |  |  |
Outstanding at beginning of period (in shares) | 1,398,853 | 1,428,634 | 1,299,868
Granted (in shares) | 723,224 | 862,180 | 536,673
Issued and fully vested (in shares) | (2,122,077) | (891,961) | (407,907)
Forfeited (in shares) | 0 | 0 | 0
Outstanding at end of period (in shares) | 0 | 1,398,853 | 1,428,634
Weighted- Average Grant Date Fair Value per Share |  |  |
Outstanding at beginning of period (in dollars per share) | $ 16.41 | $ 20.17 | $ 19.47
Granted (in dollars per share) | 16.07 | 13.79 | 20.63
Issued and fully vested (in dollars per share) | 16.30 | 19.89 | 18.57
Forfeited (in dollars per share) | 0 | 0 | 0
Outstanding at end of period (in dollars per share) | $ 0 | $ 16.41 | $ 20.17

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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that issued and fully vested during the reporting period. + References No definition available. + Details
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- Definition The weighted average fair value at grant date for equity-based awards issued and fully vested during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References No definition available. + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting 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)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. + 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)(2)(iii)(3) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + 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)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit 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 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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