Accrued Expenses And Other Current Liabilities (Schedule of Accrued Expenses and Other Current Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Payables and Accruals [Abstract]
Employee compensation and benefits	$ 47,459	$ 25,147
Current portion of accrued warranty	20,393	17,020	$ 14,516
Customer rebates	9,329	7,993
Other	21,554	19,002
Accrued expenses and other current liabilities	$ 98,735	$ 69,162