Commitments and Contingencies (Changes To Warranty Liability) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]
Warranty liabilities, beginning of period	$ 61,632	$ 63,152	$ 63,992	$ 64,098
Reserves provided	11,881	10,687	20,661	20,757
Payments	(10,837)	(10,744)	(21,912)	(21,780)
Other adjustments	(690)	(1,181)	(755)	(1,161)
Warranty liabilities, end of period	$ 61,986	$ 61,914	$ 61,986	$ 61,914