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Derivatives and Hedging Activity - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gain (loss) related to hedge ineffectiveness |  | $ (0.6) | $ (0.2) | $ 1.6
Scenario, Forecast [Member] |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Estimated pretax loss to be reclassified from accumulated other comprehensive loss into earnings | $ (3.5) |  |  |

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- Definition The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80845-113994 + Details
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