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Guarantees (Tables)
9 Months Ended
Sep. 30, 2019
Guarantees [Abstract]  
Changes in the carrying amount of service and product warranties
Changes in the carrying amount of service and product standard warranties for the nine months ended September 30, are as follows:
 
2019
 
2018
Balance as of January 1,
$
1,798

 
$
1,750

 
 
 
 
Provision for warranties
1,495

 
1,036

Claims made
(1,034
)
 
(937
)
 
 
 


Balance as of September 30,
$
2,259

 
$
1,849