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Stock-Based Compensation (Detail) - (Table 4) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |  |  |
Outstanding at January 1, 2012 | 2,674,000 |  |
Outstanding at January 1, 2012 (in Dollars per share) | $ 26.80 |  |
Granted | (270,000) |  |
Granted (in Dollars per share) | $ 43.30 |  |
Exercised | (411,000) |  |
Exercised (in Dollars per share) | $ 23.67 |  |
Cancelled/Forfeited | (2,000) |  |
Outstanding at June 30, 2012 | 2,531,000 | 2,674,000 |
Outstanding at June 30, 2012 (in Dollars per share) | $ 29.06 | $ 26.80 |
Outstanding at June 30, 2012 | 2 years 8 months 12 days |  |
Outstanding at June 30, 2012 (in Dollars) | $ 44,054 |  |
Exercisable at June 30, 2012 | 2,070,000 |  |
Exercisable at June 30, 2012 (in Dollars per share) | $ 28.20 |  |
Stock based compensation, shares exercisable, weighted average remaining contractual term | 2 years 7 months 6 days |  |
Exercisable at June 30, 2012 (in Dollars) | $ 37,829 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price | $ 31.56 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum | 0.10% | 0.20% | 1.60%
Risk free interest rate | 1.00% | 1.60% | 2.50%

X
- Definition The maximum risk-free interest rate assumption that is used in valuing an option on its own shares. + References No definition available. + Details
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- Definition The minimum risk-free interest rate assumption that is used in valuing an option on its own shares. + References No definition available. + Details
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option 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)(1)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + 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)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + 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)(3)-(4) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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