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Share-Based Compensation - Summary of Activity of the Outstanding PRSU Awards (Details) - Performance-based Restricted Stock Units ("PBRS") | 3 Months Ended
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Mar. 31, 2021 $ / shares shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |
Beginning Balance, shares | shares | 61,208
Granted, shares | shares | 101,785
Ending Balance, shares | shares | 162,993
Beginning Balance, Weighted-Average Grant Date Fair Value | $ / shares | $ 57.18
Granted, Weighted-Average Grant Date Fair Value | $ / shares | 31.28
Ending Balance, Weighted-Average Grant Date Fair Value | $ / shares | $ 41.01
Beginning Balance, shares | shares | 121,485
Vested, shares | shares | (42,698)
Forfeited, shares | shares | (703)
Ending Balance, shares | shares | 78,084
Beginning Balance, Weighted-Average Grant Date Fair Value | $ / shares | $ 56.34
Vested, Weighted-Average Grant Date Fair Value | $ / shares | 51.96
Forfeited, Weighted-Average Grant Date Fair Value | $ / shares | 56.97
Ending Balance, Weighted-Average Grant Date Fair Value | $ / shares | $ 57.12

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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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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Liability based compensation arrangement by share based payment award equity instruments other than options forfeited in period. + References No definition available. + Details
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