Hedging Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) - 3 months ended Apr. 30, 2018 € in Millions, ₩ in Millions, ¥ in Millions, ¥ in Millions, £ in Millions, Kč in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions	JPY (¥)	GBP (£)	AUD ($)	SGD ($)	EUR (€)	CNY (¥)	CZK (Kč)	KRW (₩)	USD ($)	NZD ($)
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount	¥ 1,080.7								$ 10.0
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative, Notional Amount		£ 7.4							10.5
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | United States of America, Dollars
Derivative [Line Items]
Derivative, Notional Amount									59.3
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Euro Member Countries, Euro
Derivative [Line Items]
Derivative, Notional Amount					€ 10.1				13.9
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Australia, Dollars
Derivative [Line Items]
Derivative, Notional Amount			$ 23.7						18.4
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Czech Republic, Koruny
Derivative [Line Items]
Derivative, Notional Amount							Kč 124.6		6.1
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | China, Yuan Renminbi
Derivative [Line Items]
Derivative, Notional Amount						¥ 18.1			2.9
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Hong Kong, Dollars
Derivative [Line Items]
Derivative, Notional Amount							Kč 39.0		5.0
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Korea (South), Won
Derivative [Line Items]
Derivative, Notional Amount								₩ 20,498.4	19.2
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | New Zealand, Dollars
Derivative [Line Items]
Derivative, Notional Amount									8.6	$ 11.7
Foreign Exchange Forward [Member] | Not Designated as Hedging Instrument [Member] | Singapore, Dollars
Derivative [Line Items]
Derivative, Notional Amount				$ 29.9					22.8
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount	16,124.5								148.7
Foreign Exchange Forward [Member] | Cash Flow Hedging [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative, Notional Amount		£ 12.7							17.4
July 2016 [Member]
Derivative [Line Items]
Derivative, Notional Amount	¥ 10,600.0								100.0
July 2016 [Member] | Currency Swap [Member]
Derivative [Line Items]
Derivative, Maturity Date	Oct. 01, 2024
March 2017 [Member]
Derivative [Line Items]
Derivative, Notional Amount	¥ 11,000.0								96.1
March 2017 [Member] | Currency Swap [Member]
Derivative [Line Items]
Derivative, Maturity Date	Apr. 01, 2027
May 2017 [Member]
Derivative [Line Items]
Derivative, Notional Amount	¥ 5,600.0								$ 50.0
May 2017 [Member] | Currency Swap [Member]
Derivative [Line Items]
Derivative, Maturity Date	Apr. 01, 2027