CONSOLIDATED STATEMENTS OF CASH FLOWS (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Cash Flows [Abstract]
Cash paid for capitalized interest	$ 21,109	$ 16,447	$ 12,650
Refunds received	0	0	2,045
Payments of Stock Issuance Costs	$ 9,238	$ 1,150	$ 2,112