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Schedule of Notional Amount of Derivatives (Detail) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Asset, Notional amounts | $ 56.3 | $ 20.5
Buy Position |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Liability, Notional amounts | (48.3) | (62.2)
Sell Position |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Asset, Notional amounts | 104.6 | 82.7
Japanese Yen |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Liability, Notional amounts | (14.1) | (29.3)
Japanese Yen | Buy Position |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Liability, Notional amounts | (14.1) | (29.3)
Taiwan Dollar |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Liability, Notional amounts | (27.9) | (18.4)
Taiwan Dollar | Buy Position |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Liability, Notional amounts | (27.9) | (18.4)
Korean Won |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Liability, Notional amounts | (5.3) | (10.7)
Korean Won | Buy Position |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Liability, Notional amounts | (5.3) | (10.7)
British Pound Sterling |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Liability, Notional amounts | (1.0) | (3.8)
British Pound Sterling | Buy Position |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Liability, Notional amounts | (1.0) | (3.8)
Euro |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Asset, Notional amounts | 43.9 | 47.8
Euro | Sell Position |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Asset, Notional amounts | 43.9 | 47.8
Singapore Dollar |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Asset, Notional amounts | 52.3 | 25.3
Singapore Dollar | Sell Position |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Asset, Notional amounts | 52.3 | 25.3
Philippines, Pesos |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Asset, Notional amounts | 5.0 | 5.2
Philippines, Pesos | Sell Position |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Asset, Notional amounts | 5.0 | 5.2
China, Yuan Renminbi |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Asset, Notional amounts | 3.4 | 4.4
China, Yuan Renminbi | Sell Position |  |
Intercompany Foreign Currency Balance [Line Items] |  |
Derivative Asset, Notional amounts | $ 3.4 | $ 4.4

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