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Accrued Expenses And Other Current Liabilities (Schedule Of Accrued Expenses And Other Current Liabilities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Payables and Accruals [Abstract]    
Employee compensation and benefits $ 36,214 $ 33,835
Current portion of accrued warranty 36,760 32,180
Other 43,954 33,213
Accrued expenses and other current liabilities $ 116,928 $ 99,228