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Income Taxes - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Income Taxes [Line Items] |  |  |  |
Effective income tax rate | 24.20% | 23.20% | 22.90% | 24.00%
Minimum [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Reasonably possible decrease in unrecognized tax benefits | $ 2,500,000 |  | $ 2,500,000 |
Maximum [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Reasonably possible decrease in unrecognized tax benefits | $ 8,500,000 |  | $ 8,500,000 |

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- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d)(3) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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