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Shareholders' Equity - Summary of Information about Stock Options (Detail) $ / shares in Units, shares in Thousands, $ in Thousands | 12 Months Ended
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Dec. 31, 2019 USD ($) $ / shares shares
Number of shares - Stock Option |
Outstanding Beginning Balance | shares | 9,353
Options granted | shares | 0
Options exercised | shares | (2,518)
Options forfeited | shares | (62)
Options canceled | shares | (10)
Outstanding Ending Balance | shares | 6,763
Exercisable at December 31, 2019 | shares | 6,159
Weighted average exercise price per share - Stock Option |
Outstanding Beginning Balance | $ / shares | $ 44.60
Options granted | $ / shares | 0
Options exercised | $ / shares | 43.85
Options forfeited | $ / shares | 46.89
Options canceled | $ / shares | 45.98
Outstanding Ending Balance | $ / shares | 44.85
Exercisable at December 31, 2019 | $ / shares | $ 44.62
Weighted average remaining contractual life - Stock Option |
Outstanding at December 31, 2019 | 4 years 3 months 29 days
Exercisable at December 31, 2019 | 4 years 2 months 19 days
Aggregate intrinsic value - Stock Option |
Outstanding at December 31, 2019 | $ | $ 224,309
Exercisable at December 31, 2019 | $ | $ 205,731

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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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- 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=116856206&loc=d3e5070-113901 + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + 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)(4) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition 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. + 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) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + 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=116856206&loc=d3e5070-113901 + Details
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