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Product Warranties
9 Months Ended
Sep. 30, 2018
Product Warranties Disclosures [Abstract]  
Product Warranties PRODUCT WARRANTIES
The Company typically provides 1 to 3-year parts and service warranties on lasers and amplifiers. Most of the Company's sales offices provide support to customers in their respective geographic areas. Warranty reserves have generally been sufficient to cover product warranty repair and replacement costs.
The following table summarizes product warranty accrual activity recorded during the nine months ended September 30, 2018 and 2017.
20182017
Balance at January 1 $47,517 $33,978 
Provision for warranty accrual 19,050 20,284 
Warranty claims (13,827)(11,746)
Foreign currency translation (1,057)2,459 
Balance at September 30 $51,683 $44,975 
Accrued warranty reported in the accompanying consolidated financial statements as of September 30, 2018 and December 31, 2017 consisted of $22,045 and $25,059 in accrued expenses and other liabilities and $29,638 and $22,458 in other long-term liabilities, respectively.