Balance Sheet Components

Property and Equipment, Net

Property and equipment consist of the following:



	April 30, 2016			July 31, 2015
	(in thousands)
Computer hardware	$	18,637		$	15,099
Software	4,781			4,867
Furniture and fixtures	3,359			3,065
Leasehold improvements	8,365			8,040
Total property and equipment	35,142			31,071
Less accumulated depreciation	(21,891		)	(18,911		)
Property and equipment, net	$	13,251		$	12,160

As of April 30, 2016 and July 31, 2015, no property and equipment was pledged as collateral. Depreciation expense was $1.7 million and $4.5 million for the three and nine months ended April 30, 2016, respectively, and was $1.6 million and $4.5 million for the three and nine months ended April 30, 2015, respectively.

Goodwill and Intangible Assets

The following table presents changes in the carrying amount of goodwill for the period presented:



	Total
	(in thousands)
Goodwill, July 31, 2015	$	9,205
Addition - EagleEye acquisition	20,380
Goodwill, April 30, 2016	$	29,585

The Company’s intangible assets are amortized over the estimated useful lives. Intangible assets consist of the following:



	April 30, 2016						July 31, 2015
	(in thousands)
	Cost		Accumulated amortization		Net book value		Cost		Accumulated amortization		Net book value
Amortized intangible assets:
Acquired technology	$	13,900	$	4,420	$	9,480	$	7,200	$	3,201	$	3,999
Customer contracts and related relationships	4,500		42		4,458		—		—		—
Partner relationships	200		2		198		—		—		—
Order backlog	1,100		31		1,069		—		—		—
Total	$	19,700	$	4,495	$	15,205	$	7,200	$	3,201	$	3,999

Amortization expense was $0.6 million and $1.3 million for the three and nine months ended April 30, 2016, and was $0.4 million and $1.1 million for the three and nine months ended April 30, 2015. Estimated aggregate amortization expense for each of the next five fiscal years is as follows:



	Future Amortization
	(in thousands)
Fiscal year ending July 31,
2016 (remainder of fiscal year)	$	1,001
2017	4,004
2018	3,682
2019	2,442
2020	1,639
Thereafter	2,437
Total	$	15,205

Accrued Employee Compensation

Accrued employee compensation expense consists of the following:



	April 30, 2016		July 31, 2015
	(in thousands)
Accrued bonuses	$	14,290	$	19,819
Accrued commission	2,201		5,008
Accrued vacation	8,932		7,980
Accrued payroll taxes and benefits	3,910		4,428
Total	$	29,333	$	37,235

Accumulated Other Comprehensive Loss

Changes in accumulated other comprehensive loss by component during the nine months ended April 30, 2016 were as follows:



	Foreign Currency Translation Adjustments			Unrealized Gain (Loss) on Available-for-Sale Securities			Total
	(in thousands)
Balance as of July 31, 2015	$	(6,247	)	$	(96	)	$	(6,343	)
Other comprehensive gain (loss) before reclassification	339			342			681
Amounts reclassified from accumulated other comprehensive loss to earnings	—			4			4
Tax effect	—			(129		)	(129		)
Balance as of April 30, 2016	$	(5,908	)	$	121		$	(5,787	)