Accumulated Other Comprehensive Loss, Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2025	Oct. 31, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI, Beginning Balances	$ 1,192,211	$ 1,066,658
AOCI, Ending Balances	1,244,820	1,108,932
Unrealized (loss) gain on cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI, Beginning Balances	(394)	(149)
OCI, before Reclassifications, Net of Tax, Attributable to Parent	618	(1,402)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	222	(348)
AOCI, Ending Balances	446	(1,899)
Unamortized gain (loss) on post-retirement plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI, Beginning Balances	5	462
OCI, before Reclassifications, Net of Tax, Attributable to Parent	0	0
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	(151)	(151)
AOCI, Ending Balances	(146)	311
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI, Beginning Balances	(91,770)	(109,935)
OCI, before Reclassifications, Net of Tax, Attributable to Parent	4,743	(79)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	0	0
AOCI, Ending Balances	(87,027)	(110,014)
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
AOCI, Beginning Balances	(92,159)	(109,622)
OCI, before Reclassifications, Net of Tax, Attributable to Parent	5,361	(1,481)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	71	(499)
AOCI, Ending Balances	$ (86,727)	$ (111,602)