Property and Equipment Used in Operations (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Property and equipment used in operations
Total property and equipment	$ 251,645	$ 244,965
Less accumulated depreciation	(115,506)	(105,844)
Property and equipment, net	136,139	139,121
Land and improvements
Property and equipment used in operations
Total property and equipment	31,586	27,586
Building and improvements
Property and equipment used in operations
Total property and equipment	116,469	115,888
Furniture, fixtures, and equipment
Property and equipment used in operations
Total property and equipment	103,100	101,288
Construction in progress
Property and equipment used in operations
Total property and equipment	$ 490	$ 203