Leasing Operations (Details) (USD $)	Dec. 31, 2013
Future Minimum Rentals
Operating leases, future minimum payments receivable, current	$ 10,900,000
Operating leases, future minimum payments receivable, in two years	9,600,000
Operating leases, future minimum payments receivable, in three years	8,800,000
Operating leases, future minimum payments receivable, in four years	7,200,000
Operating leases, future minimum payments receivable, in five years	6,500,000
Operating leases, future minimum payments receivable, thereafter	57,700,000
Credit risk exposure relating to leasing arrangements	$ 0