Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2021	Jan. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ 2,420,521	$ 2,124,971	$ 2,345,569	$ 2,095,228
Ending balance	2,596,711	2,122,334	2,596,711	2,122,334
Foreign currency translation adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	26,664	(46,085)	45,657	(47,078)
OCI before reclassifications	60,133	(11,902)	41,140	(10,909)
Income taxes associated with OCI before reclassifications	0	0	0	0
Amounts reclassified from AOCI	0	0	0	0
Income taxes associated with amounts reclassified from AOCI	0	0	0	0
Ending balance	86,797	(57,987)	86,797	(57,987)
Unrealized gain (loss) on derivative
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(15,491)	(13,194)	(18,823)	(9,472)
OCI before reclassifications	(352)	(2,272)	380	(7,826)
Income taxes associated with OCI before reclassifications	87	595	(87)	1,932
Amounts reclassified from AOCI	3,410	1,935	7,049	2,582
Income taxes associated with amounts reclassified from AOCI	(794)	(482)	(1,659)	(634)
Ending balance	(13,140)	(13,418)	(13,140)	(13,418)
Other
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(696)	(1,048)	(696)	(1,048)
OCI before reclassifications	0	0	0	0
Income taxes associated with OCI before reclassifications	0	0	0	0
Amounts reclassified from AOCI	0	0	0	0
Income taxes associated with amounts reclassified from AOCI	0	0	0	0
Ending balance	(696)	(1,048)	(696)	(1,048)
AOCI including portion attributable to noncontrolling interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	10,477	(60,327)	26,138	(57,598)
OCI before reclassifications	59,781	(14,174)	41,520	(18,735)
Income taxes associated with OCI before reclassifications	87	595	(87)	1,932
Amounts reclassified from AOCI	3,410	1,935	7,049	2,582
Income taxes associated with amounts reclassified from AOCI	(794)	(482)	(1,659)	(634)
Ending balance	72,961	(72,453)	72,961	(72,453)
Foreign currency translation adjustment, attributable to noncontrolling interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Ending balance	(715)	(1,038)	(715)	(1,038)
Unrealized gain (loss) on derivatives, attributable to noncontrolling interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Ending balance	0	0	0	0
Other, attributable to noncontrolling interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Ending balance	0	0	0	0
AOCI, attributable to noncontrolling interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Ending balance	(715)	(1,038)	(715)	(1,038)
Foreign currency translation adjustment, attributable to parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Ending balance	87,512	(56,949)	87,512	(56,949)
Unrealized gain (loss) on derivative, attributable to parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Ending balance	(13,140)	(13,418)	(13,140)	(13,418)
Other, attributable to parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Ending balance	(696)	(1,048)	(696)	(1,048)
AOCI, attributable to parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	11,219	(59,591)	26,993	(57,004)
Ending balance	$ 73,676	$ (71,415)	$ 73,676	$ (71,415)