COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Future minimum lease commitments under non-cancelable leases

The future minimum lease commitments under these non-cancelable leases at December 31, 2015 were as follows (in thousands):

Year Ending December 31,
2016	$	17,825
2017	14,135
2018	11,116
2019	11,042
2020	7,200
Thereafter	6,713
Total	$	68,031

Product warranty accrual activity

The following table sets forth the activity in the product warranty accrual account for the years ended December 31, 2015, 2014 and 2013 (in thousands):

Accrual balance at January 1, 2013	$	4,476
Accruals for product warranties	5,346
Cost of warranty claims	(6,321		)
Accrual balance at December 31, 2013	3,501
Accruals for product warranties	3,985
Cost of warranty claims	(4,694		)
Accrual balance at December 31, 2014	2,792
Accruals for product warranties	3,025
Cost of warranty claims	(3,583		)
Accrual balance at December 31, 2015	$	2,234