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Stock-Based Compensation - Summary of Status of Plans (Details) | 9 Months Ended
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Sep. 30, 2021 shares
2018 Plan |
Summary of Status of Equity-Based Compensation Plans |
Awards originally available | 2,500,000
Maximum potential RSU and cash settled awards outstanding | 611,278
RSUs and cash settled awards vested and released | 117,633
Awards available for grant | 1,771,089
2014 Plan |
Summary of Status of Equity-Based Compensation Plans |
Awards originally available | 1,500,000
Maximum potential RSU and cash settled awards outstanding | 35,100
2009 Plan |
Summary of Status of Equity-Based Compensation Plans |
Awards originally available | 3,400,000
Maximum potential RSU and cash settled awards outstanding | 45,200
2004 Plan |
Summary of Status of Equity-Based Compensation Plans |
Awards originally available | 6,500,000
Maximum potential RSU and cash settled awards outstanding | 14,545
Directors' Plan |
Summary of Status of Equity-Based Compensation Plans |
Maximum potential RSU and cash settled awards outstanding | 4,722

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- Definition Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Released Life-to-Date + References No definition available. + Details
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- Definition Share based compensation arrangement by share based payment award number of shares originally available. + References No definition available. + 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 The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + 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 + Details
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