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v3.20.4

Stock-Based Compensation (Detail) - (Table 4) - USD ($) $ / shares in Units, $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 | Aug. 19, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] |  |  |  |  |
Outstanding at January 1, 2012 |  |  | 2,802,000 | 2,815,000 | 2,846,000
Outstanding at January 1, 2012 (in Dollars per share) |  |  | $ 26.85 | $ 26.03 | $ 23.87
Granted | (225,000) | (225,000) | (509,000) | (272,000) | (585,000)
Granted (in Dollars per share) |  |  | $ 34.40 | $ 30.93 | $ 32.39
Exercised |  |  | (80,000) | (273,000) | (593,000)
Exercised (in Dollars per share) |  |  | $ 21.57 | $ 22.77 | $ 22.04
Cancelled/Forfeited |  |  | (557,000) | (12,000) | (23,000)
Outstanding at June 30, 2012 |  |  | 2,674,000 | 2,802,000 | 2,815,000
Outstanding at June 30, 2012 (in Dollars per share) |  |  | $ 26.80 | $ 26.85 | $ 26.03
Outstanding at June 30, 2012 |  |  | 3 years 2 months 12 days |  |
Outstanding at June 30, 2012 (in Dollars) |  |  | $ 23,278 |  |
Exercisable at June 30, 2012 |  |  | 1,928,000 |  |
Exercisable at June 30, 2012 (in Dollars per share) |  |  | $ 26.89 |  |
Stock based compensation, shares exercisable, weighted average remaining contractual term |  |  | 3 years |  |
Exercisable at June 30, 2012 (in Dollars) |  |  | $ 16,416 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price |  |  | $ 34.74 | $ 20.17 | $ 22.59
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum |  |  | 0.20% | 1.60% | 2.10%
Risk free interest rate |  |  | 1.60% | 2.50% | 2.90%

X
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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=116856206&loc=d3e5070-113901 + Details
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