Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Supplemental Cash Flow Information [Abstract]
Cash paid for interest, net of capitalized interest during the years ended December 31, 2015, 2014 and 2013 of $12,150, $6,802 and $3,137, respectively	$ 12,150	$ 6,802	$ 3,137
BRANDYWINE OPERATING PARTNERSHIP, L.P.
Supplemental Cash Flow Information [Abstract]
Cash paid for interest, net of capitalized interest during the years ended December 31, 2015, 2014 and 2013 of $12,150, $6,802 and $3,137, respectively	$ 12,150	$ 6,802	$ 3,137