Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Taxable REIT Subsidiaries
Operating Loss Carryforwards [Line Items]
Net income (loss)	$ (4.5)	$ (56.0)
Capital losses	$ 4.4
Earliest Tax Year
Operating Loss Carryforwards [Line Items]
Open tax year	2012
Latest Tax Year
Operating Loss Carryforwards [Line Items]
Open tax year	2015