Accrued Expenses And Other Current Liabilities (Schedule Of Accrued Expenses And Other Current Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Payables and Accruals [Abstract]
Employee compensation and benefits	$ 45,299	$ 25,147	$ 31,870
Current portion of accrued warranty	19,607	17,020	16,569
Sales rebates	10,998	7,993	7,508
Taxes payable	0	0	1,729
Other	21,829	19,002	17,885
Accrued expenses and other current liabilities	$ 97,733	$ 69,162	$ 75,561