Interest (Tables)

3 Months Ended

Mar. 31, 2018

Interest [Abstract]

Schedule Of Capitalized Interest Costs

	Three months ended March 31,
	2018		2017
Interest capitalized beginning of period	$	41,762		28,935
Interest capitalized during period		13,357		7,734
Less: capitalized interest in cost of sales		(8,959)		(4,956)
Interest capitalized end of period	$	46,160		31,713