Intangible Assets (Tables)

9 Months Ended

Apr. 30, 2017

Finite-Lived Intangible Assets, Net [Abstract]

Intangible assets with finite lives

Intangible assets with finite lives are as follows:

	As of April 30, 2017
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Customer relationships	20.3	$	249,831,000	38,567,000	$	211,264,000
Technologies	12.3	82,370,000		47,182,000	35,188,000
Trademarks and other	16.4	28,894,000		8,207,000	20,687,000
Total		$	361,095,000	93,956,000	$	267,139,000

	As of July 31, 2016
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Customer relationships	20.3	$	249,831,000	28,497,000	$	221,334,000
Technologies	12.3	82,370,000		42,860,000	39,510,000
Trademarks and other	16.3	28,894,000		5,044,000	23,850,000
Total		$	361,095,000	76,401,000	$	284,694,000

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The estimated amortization expense consists of the following for the fiscal years ending July 31,:

2017	$	22,823,000
2018	21,075,000
2019	17,155,000
2020	17,155,000
2021	16,196,000