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Stock-Based Compensation - Summary of Stock Options Outstanding (Detail) - $ / shares shares in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
$35.00 - $45.00 [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Options Outstanding, Number Outstanding |  | 839
Options Outstanding, Weighted-Average Remaining Contractual Life |  | 6 years 6 months
Options Outstanding, Weighted-Average Exercise Price |  | $ 41.94
Options Exercisable, Number Exercisable |  | 376
Options Exercisable, Weighted-Average Exercise Price |  | $ 41.30
$35.00 - $45.00 [Member] | Minimum [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Exercise Price | $ 35 |
$35.00 - $45.00 [Member] | Maximum [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Exercise Price | 45 |
$45.01 - $55.00 [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Options Outstanding, Number Outstanding |  | 2,178
Options Outstanding, Weighted-Average Remaining Contractual Life |  | 5 years 4 months 24 days
Options Outstanding, Weighted-Average Exercise Price |  | $ 48.65
Options Exercisable, Number Exercisable |  | 1,976
Options Exercisable, Weighted-Average Exercise Price |  | $ 48.71
$45.01 - $55.00 [Member] | Minimum [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Exercise Price | 45.01 |
$45.01 - $55.00 [Member] | Maximum [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Exercise Price | 55 |
$55.01 - $65.00 [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Options Outstanding, Number Outstanding |  | 650
Options Outstanding, Weighted-Average Remaining Contractual Life |  | 6 years 4 months 24 days
Options Outstanding, Weighted-Average Exercise Price |  | $ 59.07
Options Exercisable, Number Exercisable |  | 650
Options Exercisable, Weighted-Average Exercise Price |  | $ 59.07
$55.01 - $65.00 [Member] | Minimum [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Exercise Price | 55.01 |
$55.01 - $65.00 [Member] | Maximum [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Exercise Price | 65 |
$65.01 - $75.00 [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Options Outstanding, Number Outstanding |  | 249
Options Outstanding, Weighted-Average Remaining Contractual Life |  | 7 years 4 months 24 days
Options Outstanding, Weighted-Average Exercise Price |  | $ 65.80
Options Exercisable, Number Exercisable |  | 166
Options Exercisable, Weighted-Average Exercise Price |  | $ 65.80
$65.01 - $75.00 [Member] | Minimum [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Exercise Price | 65.01 |
$65.01 - $75.00 [Member] | Maximum [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Exercise Price | 75 |
$35.00 - $75.00 [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Options Outstanding, Number Outstanding |  | 3,916
Options Outstanding, Weighted-Average Remaining Contractual Life |  | 5 years 10 months 24 days
Options Outstanding, Weighted-Average Exercise Price |  | $ 50.03
Options Exercisable, Number Exercisable |  | 3,168
Options Exercisable, Weighted-Average Exercise Price |  | $ 50.85
$35.00 - $75.00 [Member] | Minimum [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Exercise Price | 35 |
$35.00 - $75.00 [Member] | Maximum [Member] |  |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding By Exercise Price [Line Items] |  |
Exercise Price | $ 75 |

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- Definition Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price + References No definition available. + Details
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- Definition Share based compensation shares authorized under stock option plans exercise price range outstanding options weighted average exercise price. + References No definition available. + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + 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)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and 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 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, 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 (e)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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