CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2021	Apr. 30, 2020	Apr. 30, 2021	Apr. 30, 2020
Statement of Comprehensive Income [Abstract]
Net Income	$ 37,291	$ 13,633	$ 101,632	$ 84,684
Other comprehensive income (loss):
Foreign currency translation adjustments	2,891	(17,424)	17,773	(18,383)
Cash flow hedges:
Net gain (loss) recognized in other comprehensive income (loss)	118	(1,751)	1,266	(1,192)
Reclassification adjustment for gains included in net income	(292)	(293)	(21)	(779)
Other Comprehensive Income (Loss), Cash Flow Hedge Gain, after Reclassification, before Tax, Total	(174)	(2,044)	1,245	(1,971)
Pension and other post-retirement benefits:
Net loss recognized in other comprehensive income (loss)	0	0	(32)	(309)
Net actuarial gain amortization	(105)	(105)	(306)	(315)
Other Comprehensive (Income) Loss, Pension and other Post-retirement Benefits, after Reclassification Adjustment, before Tax	(105)	(105)	(338)	(624)
Other comprehensive income (loss), before tax	2,612	(19,573)	18,680	(20,978)
Income tax benefit (expense) related to items of other comprehensive income (loss)	301	(179)	(751)	(10)
Other comprehensive income (loss), net of tax	2,913	(19,752)	17,929	(20,988)
Comprehensive income (loss)	$ 40,204	$ (6,119)	$ 119,561	$ 63,696