XML 116 R70.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Product Warranties (Changes in Warranty Reserve) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Product Warranties [Abstract]    
Balance at the beginning of the year $ 9,309 $ 8,062
Current year provision 1,416 1,324
Reductions for payments, costs of repairs and other (363) (526)
Adjustments to prior warranties (1,974) 449
Balance at the end of the year $ 8,388 $ 9,309