Hedging Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) - 9 months ended Oct. 31, 2018 € in Millions, ₩ in Millions, ¥ in Millions, £ in Millions, kr in Millions, SFr in Millions, Kč in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions, $ in Millions	JPY (¥)	GBP (£)	AUD ($)	SGD ($)	EUR (€)	HKD ($)	DKK (kr)	NZD ($)	CZK (Kč)	KRW (₩)	USD ($)	CHF (SFr)
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount	¥ 894.0										$ 7.9
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative, Notional Amount		£ 7.7									10.0
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | United States of America, Dollars
Derivative [Line Items]
Derivative, Notional Amount											72.6
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | Euro Member Countries, Euro
Derivative [Line Items]
Derivative, Notional Amount					€ 10.4						12.1
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | Australia, Dollars
Derivative [Line Items]
Derivative, Notional Amount			$ 44.2								31.5
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | Czech Republic, Koruny
Derivative [Line Items]
Derivative, Notional Amount									Kč 129.1		5.8
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | China, Yuan Renminbi
Derivative [Line Items]
Derivative, Notional Amount											10.3	SFr 10.2
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | Hong Kong, Dollars
Derivative [Line Items]
Derivative, Notional Amount						$ 64.8					8.3
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | Korea (South), Won
Derivative [Line Items]
Derivative, Notional Amount										₩ 21,466.5	19.2
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | New Zealand, Dollars
Derivative [Line Items]
Derivative, Notional Amount								$ 11.2			7.3
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | Denmark, Kroner
Derivative [Line Items]
Derivative, Notional Amount							kr 37.7				5.9
Foreign exchange forward contracts [Member] | Not Designated as Hedging Instrument [Member] | Singapore, Dollars
Derivative [Line Items]
Derivative, Notional Amount				$ 30.0							21.8
Foreign exchange forward contracts [Member] | Cash Flow Hedging [Member] | Japan, Yen
Derivative [Line Items]
Derivative, Notional Amount	¥ 16,606.2										154.0
Foreign exchange forward contracts [Member] | Cash Flow Hedging [Member] | United Kingdom, Pounds
Derivative [Line Items]
Derivative, Notional Amount		£ 14.6									19.7
July 2016 [Member] | Cross-currency swaps [Member]
Derivative [Line Items]
Derivative, Maturity Date	Oct. 01, 2024
Derivative, Notional Amount	¥ 10,600.0										100.0
March 2017 [Member] | Cross-currency swaps [Member]
Derivative [Line Items]
Derivative, Maturity Date	Apr. 01, 2027
Derivative, Notional Amount	¥ 11,000.0										96.1
May 2017 [Member] | Cross-currency swaps [Member]
Derivative [Line Items]
Derivative, Maturity Date	Apr. 01, 2027
Derivative, Notional Amount	¥ 5,600.0										$ 50.0