Accrued Expenses And Other Current Liabilities (Schedule of Accrued Expenses and Other Current Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Payables and Accruals [Abstract]
Employee compensation and benefits	$ 25,147	$ 21,473
Current portion of accrued warranty	17,020	14,516	$ 11,731
Other	26,995	21,662
Accrued expenses and other current liabilities	$ 69,162	$ 57,651