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Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2019
Commitments and Contingencies [Abstract]  
Rent Expense Total rent expense for the three years ended December 31, 2019 was as follows (in thousands):

 
  
Total
    
Real Estate
    
Other
  
2019 (1)
  
$
11,382
    
$
7,909
    
$
3,473
  
2018
    
12,605
      
9,272
      
3,333
  
2017
    
11,954
      
8,983
      
2,971
  

(1)
Includes expenses of approximately $2.4 million related to non-lease components such as maintenance, property taxes, etc., and operating lease expense for leases with an initial term of 12 months or less, which is not material.
Changes in Product Warranties The following table provides the changes in our product warranties:

 
  
December 31,
  
 
  
2019
    
2018
  
 
  
(In thousands)
  
Balance, beginning of period
  
$
19,636
    
$
20,929
  
Liabilities accrued for current year sales
    
99,304
      
85,850
  
Settlements of warranty claims
    
(96,495
)
    
(87,143
)
Balance, end of period
  
$
22,445
    
$
19,636