Summary Of Significant Accounting Policies (Changes In Warranty And Safety Recall Liability) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance, beginning of period	$ 60,263	$ 54,994	$ 54,134
Warranties issued during the period	59,022	54,394	44,092
Settlements made during the period	(64,462)	(67,247)	(55,386)
Recalls and changes to pre-existing warranty liabilities	9,297	18,122	12,154
Balance, end of period	$ 64,120	$ 60,263	$ 54,994