Intangible Assets

9 Months Ended

Apr. 30, 2017

Finite-Lived Intangible Assets, Net [Abstract]

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

The weighted average amortization period in the above table excludes fully amortized intangible assets.

Amortization expense for the three months ended April 30, 2017 and 2016 was $5,468,000 and $4,776,000, respectively. Amortization expense for the nine months ended April 30, 2017 and 2016 was $17,555,000 and $7,348,000, respectively.

Intangible assets at April 30, 2017, and the associated amortization expense for the three and nine months ended April 30, 2017 and 2016, include the impact of the TCS acquisition which closed on February 23, 2016 and which is further discussed in Note (2) - "Acquisition."

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