Fair Value of Financial Instruments Narrative (Details) (USD $)			1 Months Ended		3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2012 Credit Facility Receivable [Member]	Mar. 31, 2014 Credit Facility Receivable [Member]	Mar. 31, 2014 LIBOR Credit Facility Receivable [Member]
Fair Value of Financial Instruments (Additional Textual) [Abstract]
Credit facility to investee			$ 4,000,000
Interest rate on convertible note					0.25%
Amount drawn on credit facility by investee				4,000,000
Note and accrued interest, fair value	4,200,000
Carrying value of long-term debt	241,013,000	220,152,000
Fair value of long-term debt	$ 228,800,000	$ 190,400,000