Fee and Other Income - Schedule of Fee and Other Income (Parenthetical) (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2015
Fee And Other Income [Line Items]
Fee income	$ 1,176	$ 10,248
712 Fifth Avenue [Member]
Fee And Other Income [Line Items]
Fee income	$ 222	$ 2,308