Intangible Assets

12 Months Ended

Jul. 31, 2016

Finite-Lived Intangible Assets, Net [Abstract]

Intangible assets with finite lives as of July 31, 2016 and 2015 are as follows:



	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



	July 31, 2015
	Weighted Average Amortization Period	Gross Carrying Amount		Accumulated Amortization	Net Carrying Amount
Customer relationships	10.0	$	29,831,000	20,981,000	$	8,850,000
Technologies	12.1	47,370,000		39,266,000	8,104,000
Trademarks and other	20.0	5,794,000		2,739,000	3,055,000
Total		$	82,995,000	62,986,000	$	20,009,000

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

Amortization expense for the years ended July 31, 2016, 2015 and 2014 was $13,415,000, $6,211,000 and $6,285,000, respectively.

Intangible assets at July 31, 2016, and the associated amortization expense for the fiscal year ended July 31, 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 for the fiscal years ending July 31, 2017, 2018, 2019, 2020 and 2021 is $22,823,000, $21,075,000, $17,155,000, $17,155,000 and $16,196,000, respectively.