Accrued Expenses And Other Current Liabilities (Schedule Of Reconciliation Of The Activity Related To Accrued Warranty) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]
Balance at beginning of period	$ 54,528	$ 52,114
Provision for warranty expense	60,691	36,362
Warranty costs paid	49,110	29,373
Balance at end of period	66,109	59,103
Less long-term portion	(21,900)	(19,520)
Current portion of accrued warranty	$ 44,209	$ 39,583	$ 35,148