Accrued Expenses and Other Current Liabilities (Tables)

6 Months Ended

Jan. 31, 2017

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



	January 31, 2017		July 31, 2016
Accrued wages and benefits	$	23,395,000	23,394,000
Accrued legal costs	19,909,000		32,469,000
Accrued warranty obligations	19,014,000		15,362,000
Accrued acquisition-related costs	—		2,119,000
Accrued contract costs	10,687,000		8,348,000
Accrued commissions and royalties	3,233,000		3,473,000
Other	12,557,000		12,869,000
Accrued expenses and other current liabilities	$	88,795,000	98,034,000

our product warranty liability during the six months ended January 31, 2017 and 2016 were as follows:



	Six months ended January 31,
	2017			2016
Balance at beginning of period	$	15,362,000		8,638,000
Provision for warranty obligations	3,234,000			2,096,000
Adjustment to TCS pre-acquisition contingent liability	4,200,000			—
Charges incurred	(3,782,000		)	(2,110,000	)
Balance at end of period	$	19,014,000		8,624,000