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Additional Financial Information Disclosures (Tables)
 3 Months Ended
Mar. 31, 2020
Organization Consolidation And Presentation Of Financial Statements [Abstract]  
Changes in Warranty and After-Sale Costs Reserve Changes in the Company’s warranty and after-sale costs reserve are as follows:

 

 

 

Three months ended

March 31,

 

 

(In thousands)

 

2020

 

 

2019

 

 

Balance at beginning of period

 

$

5,583

 

 

$

4,206

 

 

Net additions charged to earnings

 

 

1,161

 

 

 

465

 

 

Costs incurred

 

 

(763

)

 

 

(353

)

 

Balance at end of period

 

$

5,981

 

 

$

4,318