Commitments and Contingencies (Details) (USD $)	12 Months Ended			10 Months Ended	12 Months Ended
	Dec. 31, 2013 portfolio	Dec. 31, 2013 Belmont	Dec. 31, 2012 Belmont	Oct. 31, 2012 Property and rental value coverage	Dec. 31, 2013 Property and rental value coverage
Commitments and Contingencies.
Employment agreements with certain executives, minimum cash-based compensation for next fiscal year	$ 4,700,000
Employment agreements with certain executives, grant date value of deferred compensation awards	1,200,000
Number of property insurance portfolios for which all-risk property and rental value coverage is maintained (portfolio)	2
Blanket limit per occurrence maintained under first property portfolio (up to $950 million)					950,000,000.0
Limit per occurrence maintained under second property portfolio (up to $700 million)					700,000,000.0
Amount of flood coverage (up to $100 million)					100,000,000.0
Limit per occurrence and in aggregate per location under liability policies (up to $201 million)				201,000,000
Loss reserves		$ 7,000,000	$ 6,200,000