Concentration (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended								12 Months Ended																12 Months Ended																12 Months Ended
	Dec. 31, 2013 Property	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Hotels Property	Dec. 31, 2013 Hotels InterContinental	Dec. 31, 2013 Hotels Sonesta Property	Dec. 31, 2013 Hotels Wyndham	Aug. 02, 2013 Hotels Wyndham	Dec. 31, 2013 Travel centers Property	Dec. 31, 2013 Credit Concentration Property	Dec. 31, 2013 Credit Concentration Hotels Property	Dec. 31, 2013 Credit Concentration Hotels Marriott (No. 234) Property	Dec. 31, 2013 Credit Concentration Hotels InterContinental Property	Dec. 31, 2013 Credit Concentration Hotels Sonesta Property	Dec. 31, 2013 Credit Concentration Hotels Wyndham Property	Dec. 31, 2013 Credit Concentration Hotels Hyatt Property	Dec. 31, 2013 Credit Concentration Hotels Carlson Property	Dec. 31, 2013 Credit Concentration Hotels Subtotal Marriott Property	Dec. 31, 2013 Credit Concentration Hotels Marriott No 1 agreement Property	Dec. 31, 2013 Credit Concentration Hotels Marriott No 5 contract Property	Dec. 31, 2013 Credit Concentration Hotels Morgans Property	Dec. 31, 2013 Credit Concentration Travel centers Property	Dec. 31, 2013 Credit Concentration Travel centers TA (No. 1) Property	Dec. 31, 2013 Credit Concentration Travel centers TA (No. 2) Property	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels Marriott (No. 234)	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels InterContinental	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels Sonesta	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels Wyndham	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels Hyatt	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels Carlson	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels Subtotal Marriott	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels Marriott No 1 agreement	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels Marriott No 5 contract	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Hotels Morgans	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Travel centers	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Travel centers TA (No. 1)	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Travel centers TA (No. 2)	Dec. 31, 2013 Credit Concentration Minimum Return/ Minimum Rent Vacation units Wyndham item Property	Dec. 31, 2013 Credit Concentration Investment	Dec. 31, 2013 Credit Concentration Investment Hotels	Dec. 31, 2013 Credit Concentration Investment Hotels Marriott (No. 234)	Dec. 31, 2013 Credit Concentration Investment Hotels InterContinental	Dec. 31, 2013 Credit Concentration Investment Hotels Sonesta	Dec. 31, 2013 Credit Concentration Investment Hotels Wyndham	Dec. 31, 2013 Credit Concentration Investment Hotels Hyatt	Dec. 31, 2013 Credit Concentration Investment Hotels Carlson	Dec. 31, 2013 Credit Concentration Investment Hotels Subtotal Marriott	Dec. 31, 2013 Credit Concentration Investment Hotels Marriott No 1 agreement	Dec. 31, 2013 Credit Concentration Investment Hotels Marriott No 5 contract	Dec. 31, 2013 Credit Concentration Investment Hotels Morgans	Dec. 31, 2013 Credit Concentration Investment Travel centers	Dec. 31, 2013 Credit Concentration Investment Travel centers TA (No. 1)	Dec. 31, 2013 Credit Concentration Investment Travel centers TA (No. 2)
Concentration
Number of properties	476			291		22			185	476	291	68	91	22	22	22	11	122	53	1	1	185	145	40
Minimum Return/ Minimum Rent																									$ 669,518	$ 447,819	$ 105,793	$ 139,498	$ 58,647	$ 25,531	$ 22,037	$ 12,920	$ 183,230	$ 67,535	$ 9,902	$ 5,956	$ 221,699	$ 160,922	$ 60,777	$ 1,288
Concentration risk, percentage																									100.00%	67.00%	16.00%	21.00%	9.00%	4.00%	3.00%	2.00%	27.00%	10.00%	1.00%	1.00%	33.00%	24.00%	9.00%		100.00%	64.00%	13.00%	18.00%	10.00%	4.00%	4.00%	3.00%	23.00%	9.00%	1.00%	2.00%	36.00%	26.00%	10.00%
Investment																																									7,711,862	4,937,822	995,439	1,417,146	774,087	348,944	301,942	209,895	1,765,808	680,291	90,078	120,000	2,774,040	1,997,738	776,302
Ground rent due				230					450																													5,165
Number of vacation units																																								48
Number of hotels				14					19																															1
Guarantee provided to the entity, maximum								35,656				40,000			35,656	50,000	40,000
Guarantee provided to the entity, remaining amount							14,163					30,672			14,163	13,974	20,446
Number of real estate properties for which unlimited guarantee is provided																				1
Security deposits	27,876	26,577			27,763
Net operating results	65,623	76,978	60,265
Reduction to operating expenses	19,311	46,386	58,772
Shortfalls due to unguaranteed portions of minimum returns	$ 46,312	$ 30,592	$ 1,493