Intangible Assets (Tables)

6 Months Ended

Jan. 31, 2020

Finite-Lived Intangible Assets, Net [Abstract]

Intangible assets with finite lives

Intangible assets with finite lives are as follows:

	As of January 31, 2020
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Customer relationships	20.5	$	282,934,000	72,909,000	$	210,025,000
Technologies	13.7	97,649,000		62,377,000	35,272,000
Trademarks and other	16.6	32,726,000		13,768,000	18,958,000
Total		$	413,309,000	149,054,000	$	264,255,000

	As of July 31, 2019
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Customer relationships	20.5	$	276,834,000	66,484,000	$	210,350,000
Technologies	12.7	92,649,000		59,522,000	33,127,000
Trademarks and other	16.7	31,026,000		12,613,000	18,413,000
Total		$	400,509,000	138,619,000	$	261,890,000

Estimated future amortization expense

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

2020	$	21,557,000
2021	20,770,000
2022	19,091,000
2023	19,091,000
2024	18,399,000