Intangible Assets (Tables)

3 Months Ended

Oct. 31, 2018

Finite-Lived Intangible Assets, Net [Abstract]

Intangible assets with finite lives

Intangible assets with finite lives are as follows:

	As of October 31, 2018
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Customer relationships	21.0	$	249,831,000	57,969,000	$	191,862,000
Technologies	12.8	82,370,000		55,585,000	26,785,000
Trademarks and other	16.4	28,894,000		11,034,000	17,860,000
Total		$	361,095,000	124,588,000	$	236,507,000

	As of July 31, 2018
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Customer relationships	21.0	$	249,831,000	55,350,000	$	194,481,000
Technologies	12.8	82,370,000		54,386,000	27,984,000
Trademarks and other	16.4	28,894,000		10,563,000	18,331,000
Total		$	361,095,000	120,299,000	$	240,796,000

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

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

2019	$	17,155,000
2020	17,155,000
2021	16,196,000
2022	14,955,000
2023	14,955,000