Derivative Financial Instruments - Schedule of Notional Amounts of Outstanding Forward Contracts (Details) - Forward Contracts - USD ($) $ in Thousands	Jun. 27, 2020	Sep. 30, 2019
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	$ 363,710	$ 498,355
Designated as Hedging Instrument | Net Investment Hedging
Derivative [Line Items]
Notional amount	186,397	183,396
Canadian / U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	6,393	9,408
Euro / U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	311,797	308,282
Euro / U.S. Dollar | Designated as Hedging Instrument | Net Investment Hedging
Derivative [Line Items]
Notional amount	186,397	183,396
British Pound / U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	860	3,756
Israeli Sheqel / U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	9,603	10,272
Japanese Yen / U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	0	37,462
Swiss Franc / U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	2,128	12,001
Danish Kroner/ U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	4,637	2,423
Swedish Kronor / U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	7,215	20,636
Singapore Dollar / U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	3,250	34,585
Chinese Renminbi / U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	3,960	52,466
Russian Ruble / U.S. Dollar | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	8,521	0
All other | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional amount	$ 5,346	$ 7,064