Accrued Expenses And Other Current Liabilities (Schedule of Accrued Expenses and Other Current Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Employee compensation and benefits	$ 62,555	$ 45,612
Current portion of accrued warranty	32,451	29,898	$ 32,180
Customer rebates	23,670	14,129
Other	69,524	42,781
Accrued expenses and other current liabilities	$ 188,200	$ 132,420