Quarterly report pursuant to Section 13 or 15(d)

Product Warranty (Reconciliation Of Product Warranties) (Details)

v3.10.0.1
Product Warranty (Reconciliation Of Product Warranties) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Reconciliation of Product Warranty Accrual [Roll Forward]        
Balance at beginning of period $ 12,066 $ 11,503 $ 12,339 $ 11,455
Provision for warranty claims 1,194 731 2,442 1,931
Warranty claims (1,121) (1,190) (2,710) (2,489)
Other (282) 170 (214) 317
Balance at end of period $ 11,857 $ 11,214 $ 11,857 $ 11,214