Summary of Significant Accounting Policies (Tables)

12 Months Ended

Jul. 31, 2020

Accounting Policies [Abstract]

Contract with Customer, Contract Asset, Contract Liability, and Receivable

The change in the carrying amount of contract assets was as follows (In thousands):

Balance as of July 31, 2018	$	11,840
Balance as of Capitalized contract assets during the period	4,130
Balance as of Costs amortized during the period	(4,875)
Balance as of Effect of foreign currency exchange rates	(521)
Balance as of July 31, 2019	$	10,574
Capitalized contract assets during the period	2,875
Costs amortized during the period	(3,541)
Effect of foreign currency exchange rates	172
Balance as of July 31, 2020	$	10,080

Schedule of foreign currency translation

The cumulative effects of foreign currency exchange rate fluctuations were as follows (In thousands):

Cumulative loss on foreign currency translation as of July 31, 2018	$	(107,928)
Loss on foreign currency translation	(24,601)
Cumulative loss on foreign currency translation as of July 31, 2019	$	(132,529)
Gain on foreign currency translation	11,441
Cumulative loss on foreign currency translation as of July 31, 2020	$	(121,088)

Schedule of fair value assumptions

The Black-Scholes Merton option-pricing model utilized the following assumptions:

	July 31,
	2020						2019						2018
Expected life (in years)	5.4			—	5.7		5.3			—	6.6		5.3			—	6.9
Risk-free interest rate	0.29		%	—	1.67	%	1.80		%	—	2.69	%	1.88		%	—	2.62	%
Estimated volatility	21.7		%	—	27.6	%	21.6		%	—	22.1	%	19.7		%	—	20.7	%
Expected dividends	—					%	—					%	—					%
Weighted average fair value at measurement date	$	21.54					$	15.47					$	8.88