v3.22.0.1

Stock-Based Compensation - Narrative (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended
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May 31, 2021 director $ / shares shares | May 31, 2020 director $ / shares shares | Jun. 30, 2019 director $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Number of securities authorized | shares |  |  |  |  | 1,000,000 |
Shares available to be granted (in shares) | shares |  |  |  | 889,650,000,000 |  |
Stock options granted (in shares) | shares |  |  |  | 0 | 0 | 0
Total intrinsic value of options exercised | $ |  |  |  | $ 3,100 | $ 400 | $ 700
Total unrecognized compensation cost related to non-vested stock options | $ |  |  |  | $ 300 |  |
Granted (in shares) | shares |  |  |  |  |  | 0
Employee stock awards |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock option vested period |  |  |  | 5 years |  |
Stock option expiration period |  |  |  | 10 years |  |
Weighted average period of compensation cost |  |  |  | 1 year |  |
Stock appreciation rights (“SARs”) |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock option vested period |  |  |  | 5 years |  |
Stock option expiration period |  |  |  | 10 years |  |
Weighted average period of compensation cost |  |  |  | 2 years 4 months 24 days |  |
Liability balance | $ |  |  |  | $ 22,100 | $ 5,300 |
Stock appreciation rights outstanding (in shares) | shares |  |  |  | 467,668 | 679,500 |
Weighted average grant date fair value (in usd per share) | $ / shares |  |  |  | $ 90.04 | $ 17.94 | $ 17.19
Intrinsic value of SARs exercised | $ |  |  |  | $ 5,400 | $ 1,100 | $ 2,100
Total unrecognized compensation cost related to non-vested SARs | $ |  |  |  | $ 20,300 |  |
Restricted Stock Awards |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock option vested period |  |  |  | 5 years |  |
Weighted average period of compensation cost |  |  |  | 2 years 6 months |  |
Weighted average grant date fair value (in usd per share) | $ / shares |  |  |  | $ 0 | $ 58.90 | $ 54.49
Total unrecognized compensation cost related to non-vested SARs | $ |  |  |  | $ 2,430 |  |
Granted (in shares) | shares |  |  |  | 0 | 37,000 | 60,000
Total fair value of shares vested during year | $ |  |  |  | $ 1,130 |  |
Restricted Stock Units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock option vested period |  |  |  | 3 years |  |
Total unrecognized compensation cost related to non-vested stock options | $ |  |  |  | $ 4,220 |  |
Weighted average period of compensation cost |  |  |  | 2 years 4 months 24 days |  |
Weighted average grant date fair value (in usd per share) | $ / shares |  |  |  | $ 61.92 |  |
Granted (in shares) | shares |  |  |  | 98,600 | 0 |
Stock grants |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Weighted average grant date fair value (in usd per share) | $ / shares | $ 78.29 | $ 44.31 | $ 53.81 |  |  |
Granted (in shares) | shares | 1,250 | 1,100 | 1,000 |  |  |
Number of non-employee directors | director | 5 | 5 | 5 |  |  |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + 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 (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for 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 (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. + 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 (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + 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 (a)(1) -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 Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + 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 (d)(2) -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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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + 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 (d)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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