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Long-term incentive compensation (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 USD ($) shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Unrecognized compensation cost related to nonvested stock-based compensation arrangements under equity compensation and stock purchase plans | $ 230,270
Unrecognized compensation cost related to nonvested stock-based compensation arrangements under stock-based component of LTIP costs, weighted average remaining period (in years) | 1 year 6 months
Restricted stock units and Performance stock units |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares | 706,000
Aggregate grant-date fair value | $ 77,279
Weighted-average expected life (in years) | 3 years 6 months
Stock Appreciation Rights |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures | shares | 132,000
Aggregate grant-date fair value | $ 4,250
Weighted-average expected life (in years) | 4 years 6 months

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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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