Quarterly report pursuant to Section 13 or 15(d)

Product Warranty (Reconciliation Of Product Warranties) (Details)

v3.7.0.1
Product Warranty (Reconciliation Of Product Warranties) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Reconciliation of Product Warranty Accrual [Roll Forward]        
Balance at beginning of period $ 11,503 $ 11,733 $ 11,455 $ 11,487
Provision for warranty claims 731 895 1,931 2,438
Warranty claims (1,190) (906) (2,489) (2,433)
Other 170 (69) 317 161
Balance at end of period $ 11,214 $ 11,653 $ 11,214 $ 11,653