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
Mar. 31, 2017
Mar. 31, 2016
Reconciliation of Product Warranty Accrual [Roll Forward]    
Balance at beginning of period $ 11,455 $ 11,487
Provision for warranty claims 1,200 1,543
Warranty claims (1,299) (1,527)
Other 147 230
Balance at end of period $ 11,503 $ 11,733