Accrued Expenses and Other Current Liabilities (Tables)

9 Months Ended

Apr. 30, 2017

Accrued expenses and other current liabilities consist of the following at:



	April 30, 2017		July 31, 2016
Accrued wages and benefits	$	23,300,000	23,394,000
Accrued legal costs	11,362,000		32,469,000
Accrued warranty obligations	18,223,000		15,362,000
Accrued acquisition-related costs	—		2,119,000
Accrued contract costs	6,240,000		8,348,000
Accrued commissions and royalties	3,118,000		3,473,000
Other	11,601,000		12,869,000
Accrued expenses and other current liabilities	$	73,844,000	98,034,000

Changes in our product warranty liability during the nine months ended April 30, 2017 and 2016 were as follows:



	Nine months ended April 30,
	2017			2016
Balance at beginning of period	$	15,362,000		8,638,000
Provision for warranty obligations	4,147,000			3,183,000
Adjustment to TCS pre-acquisition contingent liability	4,200,000			154,000
Charges incurred	(5,486,000		)	(3,336,000	)
Balance at end of period	$	18,223,000		8,639,000