Interest (Schedule Of Capitalized Interest Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest [Abstract]
Interest capitalized beginning of period	$ 70,837	$ 59,121	$ 67,069	$ 53,842
Interest capitalized during period	18,168	18,602	35,621	36,467
Less: capitalized interest in cost of sales	(18,694)	(14,655)	(32,379)	(27,241)
Interest capitalized end of period	$ 70,311	$ 63,068	$ 70,311	$ 63,068