Transactions with Related Party (Details) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2005 SHG	Dec. 31, 2012 SHG	Dec. 31, 2011 SHG	Feb. 28, 2006 Laurel	Dec. 31, 2013 Laurel	Dec. 31, 2012 Laurel	Dec. 31, 2011 Laurel
Transactions with Related Party
Senior subordinated notes purchased in open market				$ 10,000,000
Face rate of senior subordinated notes (as a percent)				11.00%
Effective yield on senior subordinated notes (as a percent)				11.10%
Remaining investment in senior subordinated notes of related party						6,500,000
Interest income related to senior subordinated notes		235,000	721,000		235,000	721,000
Period of master lease agreement							15 years
Rental income	4,479,000	4,370,000	4,264,000					4,479,000	4,370,000	4,264,000
Straight-line rental income	22,000	131,000	238,000					22,000	131,000	238,000
Straight-line rent receivable	$ 3,213,000	$ 3,191,000						$ 3,213,000	$ 3,191,000