Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	$ 1,929,334
Other comprehensive income (loss) before reclassifications	(15,059)	$ 5,017
Amounts reclassified from AOCI	1,633	928
Accumulated other comprehensive income - ending balance	2,063,199
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	(5,780)	(11,017)
Accumulated other comprehensive income - ending balance	(19,206)	(5,072)
Unrealized Loss on Available-for-sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	(425)	(451)
Other comprehensive income (loss) before reclassifications	413	(337)
Amounts reclassified from AOCI	0	0
Accumulated other comprehensive income - ending balance	(12)	(788)
Unrealized Gain (Loss) Derivatives | Foreign Currency Forward Contracts
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	(3,060)	(1,386)
Other comprehensive income (loss) before reclassifications	(1,613)	(440)
Amounts reclassified from AOCI	2,317	405
Accumulated other comprehensive income - ending balance	(2,356)	(1,421)
Unrealized Gain (Loss) Derivatives | Forward Starting Interest Rate Swaps
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	6,417	218
Other comprehensive income (loss) before reclassifications	(10,013)	4,725
Amounts reclassified from AOCI	(684)	523
Accumulated other comprehensive income - ending balance	(4,280)	5,466
Cumulative Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income - beginning balance	(8,712)	(9,398)
Other comprehensive income (loss) before reclassifications	(3,846)	1,069
Amounts reclassified from AOCI	0	0
Accumulated other comprehensive income - ending balance	$ (12,558)	$ (8,329)