Consolidated Statements of Comprehensive Loss Statement (USD $) In Thousands, unless otherwise specified	2 Months Ended		12 Months Ended
	Dec. 31, 2012		Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (16)	[1]	$ 5,415	$ 102
Other comprehensive loss (net change by component):
Unrealized loss on available-for-sale securities	0	[1]	(297)	(10)
Comprehensive income (loss) attributable to Realty Finance Trust, Inc.	$ (16)	[1]	$ 5,118	$ 92

[1] For the period from November 15, 2012 (inception) to December 31, 2012