Interest (Schedule Of Capitalized Interest Costs) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Interest [Abstract]
Interest capitalized beginning of period	$ 67,069	$ 53,842
Interest capitalized during period	17,453	17,866
Less: capitalized interest in cost of sales	(13,685)	(12,587)
Interest capitalized end of period	$ 70,837	$ 59,121