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CAPITAL STOCK AND STOCK AWARD PLANS - Stock Options Grants by First Vesting Date (Details) | 12 Months Ended
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Dec. 31, 2021 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options granted, net of forfeitures (in shares) | 4,234,446
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 15.70
Unvested options (in shares) | 1,704,187
First Vesting Date Dec 31 2018 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options granted, net of forfeitures (in shares) | 1,441,636
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 14.25
Unvested options (in shares) | 276,353
First Vesting Date Dec 31 2019 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options granted, net of forfeitures (in shares) | 1,154,019
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 20.12
Unvested options (in shares) | 451,674
First Vesting Date Dec 31 2020 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options granted, net of forfeitures (in shares) | 1,638,791
Weighted average grant date fair value (in dollars per share) | $ / shares | $ 13.87
Unvested options (in shares) | 976,160

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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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