Schedule III - Real Estate and Accumulated Depreciation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended																																																				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Birmingham, AL [Member]	Dec. 31, 2013 Phoenix - Biltmore, AZ [Member]	Dec. 31, 2013 Dana Point – Doheny Beach, CA [Member]	Dec. 31, 2013 Indian Wells - Esmeralda Resort and Spa, CA [Member]	Dec. 31, 2013 Los Angeles - International Airport - South, CA [Member]	Dec. 31, 2013 Milpitas - Silicon Valley, CA [Member]	Dec. 31, 2013 Napa Valley, CA [Member]	Dec. 31, 2013 Oxnard - Mandalay Beach - Hotel & Resort, CA [Member]	Dec. 31, 2013 San Diego - On the Bay, CA [Member]	Dec. 31, 2013 San Francisco - Airport/Waterfront, CA [Member]	Dec. 31, 2013 San Francisco - Airport/South San Francisco, CA [Member]	Dec. 31, 2013 San Francisco - Fisherman's Wharf, CA [Member]	Dec. 31, 2013 San Francisco - Union Square, CA [Member]	Dec. 31, 2013 Santa Monica Beach - at the Pier, CA [Member]	Dec. 31, 2013 Toronto - Airport, Canada [Member]	Dec. 31, 2013 Deerfield Beach - Resort & Spa, FL [Member]	Dec. 31, 2013 Ft. Lauderdale - 17th Street, FL [Member]	Dec. 31, 2013 Miami - International Airport, FL [Member]	Dec. 31, 2013 Orlando - International Airport, FL [Member]	Dec. 31, 2013 Orlando - International Drive South/Convention, FL [Member]	Dec. 31, 2013 Orlando - Walt Disney World Resort, FL [Member]	Dec. 31, 2013 St. Petersburg - Vinoy Resort & Golf Club, FL [Member]	Dec. 31, 2013 Atlanta - Buckhead, GA [Member]	Dec. 31, 2013 Atlanta - Gateway-Atlanta Airport, GA [Member]	Dec. 31, 2013 Indianapolis - North, IN [Member]	Dec. 31, 2013 New Orleans - French Quarter, LA [Member]	Dec. 31, 2013 Boston - at Beacon Hill, MA [Member]	Dec. 31, 2013 Boston - Copley Plaza, MA [Member]	Dec. 31, 2013 Boston - Marlborough, MA [Member]	Dec. 31, 2013 Baltimore - at BWI Airport, MD [Member]	Dec. 31, 2013 Bloomington, MN [Member]	Dec. 31, 2013 Minneapolis - Airport, MN [Member]	Dec. 31, 2013 Charlotte - SouthPark, NC [Member]	Dec. 31, 2013 New York - Morgans [Member]	Dec. 31, 2013 New York - Royalton [Member]	Dec. 31, 2013 Philadelphia - Historic District, PA [Member]	Dec. 31, 2013 Philadelphia - Society Hill, PA [Member]	Dec. 31, 2013 Pittsburgh - at University Center (Oakland), PA [Member]	Dec. 31, 2013 Charleston - Mills House, SC [Member]	Dec. 31, 2013 Myrtle Beach - Oceanfront Resort, SC [Member]	Dec. 31, 2013 Myrtle Beach Resort [Member]	Dec. 31, 2013 Nashville - Opryland - Airport (Briley Parkway), TN [Member]	Dec. 31, 2013 Austin, TX [Member]	Dec. 31, 2013 Dallas - Love Field, TX [Member]	Dec. 31, 2013 Dallas - Park Central, TX [Member]	Dec. 31, 2013 Houston - Medical Center, TX [Member]	Dec. 31, 2013 Burlington Hotel & Conference Center, VT [Member]	Dec. 31, 2013 Hotels [Member]	Dec. 31, 2013 Other properties [Member]	Dec. 31, 2013 Minimum [Member] Birmingham, AL [Member]	Dec. 31, 2013 Minimum [Member] Phoenix - Biltmore, AZ [Member]	Dec. 31, 2013 Minimum [Member] Dana Point – Doheny Beach, CA [Member]	Dec. 31, 2013 Minimum [Member] Indian Wells - Esmeralda Resort and Spa, CA [Member]	Dec. 31, 2013 Minimum [Member] Los Angeles - International Airport - South, CA [Member]	Dec. 31, 2013 Minimum [Member] Milpitas - Silicon Valley, CA [Member]	Dec. 31, 2013 Minimum [Member] Napa Valley, CA [Member]	Dec. 31, 2013 Minimum [Member] Oxnard - Mandalay Beach - Hotel & Resort, CA [Member]	Dec. 31, 2013 Minimum [Member] San Diego - On the Bay, CA [Member]	Dec. 31, 2013 Minimum [Member] San Francisco - Airport/Waterfront, CA [Member]	Dec. 31, 2013 Minimum [Member] San Francisco - Airport/South San Francisco, CA [Member]	Dec. 31, 2013 Minimum [Member] San Francisco - Fisherman's Wharf, CA [Member]	Dec. 31, 2013 Minimum [Member] San Francisco - Union Square, CA [Member]	Dec. 31, 2013 Minimum [Member] Santa Monica Beach - at the Pier, CA [Member]	Dec. 31, 2013 Minimum [Member] Toronto - Airport, Canada [Member]	Dec. 31, 2013 Minimum [Member] Deerfield Beach - Resort & Spa, FL [Member]	Dec. 31, 2013 Minimum [Member] Ft. Lauderdale - 17th Street, FL [Member]	Dec. 31, 2013 Minimum [Member] Miami - International Airport, FL [Member]	Dec. 31, 2013 Minimum [Member] Orlando - International Airport, FL [Member]	Dec. 31, 2013 Minimum [Member] Orlando - International Drive South/Convention, FL [Member]	Dec. 31, 2013 Minimum [Member] Orlando - Walt Disney World Resort, FL [Member]	Dec. 31, 2013 Minimum [Member] St. Petersburg - Vinoy Resort & Golf Club, FL [Member]	Dec. 31, 2013 Minimum [Member] Atlanta - Buckhead, GA [Member]	Dec. 31, 2013 Minimum [Member] Atlanta - Gateway-Atlanta Airport, GA [Member]	Dec. 31, 2013 Minimum [Member] Indianapolis - North, IN [Member]	Dec. 31, 2013 Minimum [Member] New Orleans - French Quarter, LA [Member]	Dec. 31, 2013 Minimum [Member] Boston - at Beacon Hill, MA [Member]	Dec. 31, 2013 Minimum [Member] Boston - Copley Plaza, MA [Member]	Dec. 31, 2013 Minimum [Member] Boston - Marlborough, MA [Member]	Dec. 31, 2013 Minimum [Member] Baltimore - at BWI Airport, MD [Member]	Dec. 31, 2013 Minimum [Member] Bloomington, MN [Member]	Dec. 31, 2013 Minimum [Member] Minneapolis - Airport, MN [Member]	Dec. 31, 2013 Minimum [Member] Charlotte - SouthPark, NC [Member]	Dec. 31, 2013 Minimum [Member] New York - Morgans [Member]	Dec. 31, 2013 Minimum [Member] New York - Royalton [Member]	Dec. 31, 2013 Minimum [Member] Philadelphia - Historic District, PA [Member]	Dec. 31, 2013 Minimum [Member] Philadelphia - Society Hill, PA [Member]	Dec. 31, 2013 Minimum [Member] Pittsburgh - at University Center (Oakland), PA [Member]	Dec. 31, 2013 Minimum [Member] Charleston - Mills House, SC [Member]	Dec. 31, 2013 Minimum [Member] Myrtle Beach - Oceanfront Resort, SC [Member]	Dec. 31, 2013 Minimum [Member] Myrtle Beach Resort [Member]	Dec. 31, 2013 Minimum [Member] Nashville - Opryland - Airport (Briley Parkway), TN [Member]	Dec. 31, 2013 Minimum [Member] Austin, TX [Member]	Dec. 31, 2013 Minimum [Member] Dallas - Love Field, TX [Member]	Dec. 31, 2013 Minimum [Member] Dallas - Park Central, TX [Member]	Dec. 31, 2013 Minimum [Member] Houston - Medical Center, TX [Member]	Dec. 31, 2013 Minimum [Member] Burlington Hotel & Conference Center, VT [Member]	Dec. 31, 2013 Maximum [Member] Birmingham, AL [Member]	Dec. 31, 2013 Maximum [Member] Phoenix - Biltmore, AZ [Member]	Dec. 31, 2013 Maximum [Member] Dana Point – Doheny Beach, CA [Member]	Dec. 31, 2013 Maximum [Member] Indian Wells - Esmeralda Resort and Spa, CA [Member]	Dec. 31, 2013 Maximum [Member] Los Angeles - International Airport - South, CA [Member]	Dec. 31, 2013 Maximum [Member] Milpitas - Silicon Valley, CA [Member]	Dec. 31, 2013 Maximum [Member] Napa Valley, CA [Member]	Dec. 31, 2013 Maximum [Member] Oxnard - Mandalay Beach - Hotel & Resort, CA [Member]	Dec. 31, 2013 Maximum [Member] San Diego - On the Bay, CA [Member]	Dec. 31, 2013 Maximum [Member] San Francisco - Airport/Waterfront, CA [Member]	Dec. 31, 2013 Maximum [Member] San Francisco - Airport/South San Francisco, CA [Member]	Dec. 31, 2013 Maximum [Member] San Francisco - Fisherman's Wharf, CA [Member]	Dec. 31, 2013 Maximum [Member] San Francisco - Union Square, CA [Member]	Dec. 31, 2013 Maximum [Member] Santa Monica Beach - at the Pier, CA [Member]	Dec. 31, 2013 Maximum [Member] Toronto - Airport, Canada [Member]	Dec. 31, 2013 Maximum [Member] Deerfield Beach - Resort & Spa, FL [Member]	Dec. 31, 2013 Maximum [Member] Ft. Lauderdale - 17th Street, FL [Member]	Dec. 31, 2013 Maximum [Member] Miami - International Airport, FL [Member]	Dec. 31, 2013 Maximum [Member] Orlando - International Airport, FL [Member]	Dec. 31, 2013 Maximum [Member] Orlando - International Drive South/Convention, FL [Member]	Dec. 31, 2013 Maximum [Member] Orlando - Walt Disney World Resort, FL [Member]	Dec. 31, 2013 Maximum [Member] St. Petersburg - Vinoy Resort & Golf Club, FL [Member]	Dec. 31, 2013 Maximum [Member] Atlanta - Buckhead, GA [Member]	Dec. 31, 2013 Maximum [Member] Atlanta - Gateway-Atlanta Airport, GA [Member]	Dec. 31, 2013 Maximum [Member] Indianapolis - North, IN [Member]	Dec. 31, 2013 Maximum [Member] New Orleans - French Quarter, LA [Member]	Dec. 31, 2013 Maximum [Member] Boston - at Beacon Hill, MA [Member]	Dec. 31, 2013 Maximum [Member] Boston - Copley Plaza, MA [Member]	Dec. 31, 2013 Maximum [Member] Boston - Marlborough, MA [Member]	Dec. 31, 2013 Maximum [Member] Baltimore - at BWI Airport, MD [Member]	Dec. 31, 2013 Maximum [Member] Bloomington, MN [Member]	Dec. 31, 2013 Maximum [Member] Minneapolis - Airport, MN [Member]	Dec. 31, 2013 Maximum [Member] Charlotte - SouthPark, NC [Member]	Dec. 31, 2013 Maximum [Member] New York - Morgans [Member]	Dec. 31, 2013 Maximum [Member] New York - Royalton [Member]	Dec. 31, 2013 Maximum [Member] Philadelphia - Historic District, PA [Member]	Dec. 31, 2013 Maximum [Member] Philadelphia - Society Hill, PA [Member]	Dec. 31, 2013 Maximum [Member] Pittsburgh - at University Center (Oakland), PA [Member]	Dec. 31, 2013 Maximum [Member] Charleston - Mills House, SC [Member]	Dec. 31, 2013 Maximum [Member] Myrtle Beach - Oceanfront Resort, SC [Member]	Dec. 31, 2013 Maximum [Member] Myrtle Beach Resort [Member]	Dec. 31, 2013 Maximum [Member] Nashville - Opryland - Airport (Briley Parkway), TN [Member]	Dec. 31, 2013 Maximum [Member] Austin, TX [Member]	Dec. 31, 2013 Maximum [Member] Dallas - Love Field, TX [Member]	Dec. 31, 2013 Maximum [Member] Dallas - Park Central, TX [Member]	Dec. 31, 2013 Maximum [Member] Houston - Medical Center, TX [Member]	Dec. 31, 2013 Maximum [Member] Burlington Hotel & Conference Center, VT [Member]	Dec. 31, 2013 Ten Point Zero Zero Percent Due October 2014 [Member] Senior Notes [Member]	Apr. 30, 2011 Ten Point Zero Zero Percent Due October 2014 [Member] Senior Notes [Member]	Dec. 31, 2013 Six Point Seven Five Percent Due June 2019 [Member] Senior Notes [Member]	Dec. 31, 2013 Five Point Six Two Five Percent Due March 2023 [Member] Senior Notes [Member]	Dec. 31, 2012 Five Point Six Two Five Percent Due March 2023 [Member] Senior Notes [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 308,225			$ 23,918	$ 17,254	$ 8,096				$ 27,994	$ 13,112						$ 12,839		$ 31,714	$ 35,852	$ 10,921	$ 7,947						$ 9,904					$ 19,388	$ 0	$ 38,455	$ 4,805			$ 10,111		$ 8,835	$ 11,880				$ 7,799		$ 0	$ 7,401		$ 308,225	$ 0
Initial Cost
Land	234,161			2,843	4,694	1,787	30,948	2,660	4,021	2,218	2,930	0	0	3,418	0	8,466	10,200	0	4,523	5,329	4,135	2,549	1,632	0	0	7,303	5,113	5,125	0	0	27,600	948	2,568	2,038	5,417	1,458	16,200	32,500	3,164	4,542	0	3,251	2,940	9,000	0	2,508	1,934	4,513	0	3,136	233,611	550
Building and Improvements	1,558,779			29,286	38,998	15,545	73,507	17,997	23,677	14,205	22,125	68,229	39,929	31,737	61,883	73,684	16,580	21,041	29,443	47,850	24,950	22,188	13,870	28,092	100,823	38,996	22,857	13,821	50,732	45,192	62,500	8,143	22,433	17,731	36,508	12,681	29,872	48,423	27,535	45,121	25,031	28,295	24,988	19,844	27,734	21,908	16,674	43,125	22,027	27,283	1,555,093	3,686
Cost Capitalized Subsequent to Acquisition
Land	740			0	0	0	0	0	0	0	0	0	0	0	0	(434)	0	0	68	(163)	0	6	0	0	0	(300)	0	0	0	0	0	761	(2)	0	24	0	0	0	7	0	0	7	0	6	0	0	0	762	0	(2)	740	0
Building and Improvements	381,420			4,536	4,338	6,387	6,088	3,769	4,229	6,993	11,276	12,551	5,290	4,476	17,181	53,380	1,595	15,188	6,722	6,955	6,663	3,746	3,770	3,460	6,182	3,025	1,944	6,867	9,441	9,528	14,480	15,448	4,991	3,278	2,962	3,601	1,231	2,161	10,624	9,517	3,530	7,382	11,667	31,821	3,521	4,411	4,854	8,688	7,017	4,434	381,198	222
Gross Amounts at Which Carried at Close of Period
Land	234,901			2,843	4,694	1,787	30,948	2,660	4,021	2,218	2,930	0	0	3,418	0	8,032	10,200	0	4,591	5,166	4,135	2,555	1,632	0	0	7,003	5,113	5,125	0	0	27,600	1,709	2,566	2,038	5,441	1,458	16,200	32,500	3,171	4,542	0	3,258	2,940	9,006	0	2,508	1,934	5,275	0	3,134	234,351	550
Building and Improvements	1,940,199			33,822	43,336	21,932	79,595	21,766	27,906	21,198	33,401	80,780	45,219	36,213	79,064	127,064	18,175	36,229	36,165	54,805	31,613	25,934	17,640	31,552	107,005	42,021	24,801	20,688	60,173	54,720	76,980	23,591	27,424	21,009	39,470	16,282	31,103	50,584	38,159	54,638	28,561	35,677	36,655	51,665	31,255	26,319	21,528	51,813	29,044	31,717	1,936,291	3,908
Total	2,175,100	2,305,896	2,528,930	36,665	48,030	23,719	110,543	24,426	31,927	23,416	36,331	80,780	45,219	39,631	79,064	135,096	28,375	36,229	40,756	59,971	35,748	28,489	19,272	31,552	107,005	49,024	29,914	25,813	60,173	54,720	104,580	25,300	29,990	23,047	44,911	17,740	47,303	83,084	41,330	59,180	28,561	38,935	39,595	60,671	31,255	28,827	23,462	57,088	29,044	34,851	2,170,642	4,458
Accumulated Depreciation Buildings & Improvements	698,146	693,114	723,982	14,543	18,809	8,143	11,718	9,553	12,101	7,754	13,046	38,729	19,037	15,785	38,766	41,436	4,194	14,195	15,446	23,787	13,429	9,365	8,312	16,933	17,671	17,870	9,776	12,158	22,528	29,461	6,199	9,682	11,075	8,721	17,339	5,158	1,980	3,256	16,084	21,430	11,463	12,518	13,168	14,652	17,089	10,737	9,267	20,545	10,471	12,240	697,619	527
Life Upon Which Depreciation is Computed																																																					15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	15 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years	40 years
Interest rate																																																																																																																																																			10.00%	10.00%	6.75%	5.625%	5.625%
Reconciliation of Land and Buildings and Improvements
Balance at beginning of period	2,305,896	2,528,930	2,609,050	36,665	48,030	23,719	110,543	24,426	31,927	23,416	36,331	80,780	45,219	39,631	79,064	135,096	28,375	36,229	40,756	59,971	35,748	28,489	19,272	31,552	107,005	49,024	29,914	25,813	60,173	54,720	104,580	25,300	29,990	23,047	44,911	17,740	47,303	83,084	41,330	59,180	28,561	38,935	39,595	60,671	31,255	28,827	23,462	57,088	29,044	34,851	2,170,642	4,458
Additions during period:
Acquisitions	0	0	131,231
Improvements	21,236	44,887	34,981
Deductions during period:
Disposition of properties	(152,032)	(267,921)	(246,332)
Balance at end of period before impairment charges	2,175,100	2,305,896	2,528,930	36,665	48,030	23,719	110,543	24,426	31,927	23,416	36,331	80,780	45,219	39,631	79,064	135,096	28,375	36,229	40,756	59,971	35,748	28,489	19,272	31,552	107,005	49,024	29,914	25,813	60,173	54,720	104,580	25,300	29,990	23,047	44,911	17,740	47,303	83,084	41,330	59,180	28,561	38,935	39,595	60,671	31,255	28,827	23,462	57,088	29,044	34,851	2,170,642	4,458
Cumulative impairment charges on real estate assets owned at end of period	(107,492)	(95,121)	(151,408)
Balance at end of period	2,067,608	2,210,775	2,377,522
Reconciliation of Accumulated Depreciation
Balance at beginning of period	693,114	723,982	729,420	14,543	18,809	8,143	11,718	9,553	12,101	7,754	13,046	38,729	19,037	15,785	38,766	41,436	4,194	14,195	15,446	23,787	13,429	9,365	8,312	16,933	17,671	17,870	9,776	12,158	22,528	29,461	6,199	9,682	11,075	8,721	17,339	5,158	1,980	3,256	16,084	21,430	11,463	12,518	13,168	14,652	17,089	10,737	9,267	20,545	10,471	12,240	697,619	527
Additions during period:
Depreciation for the period	58,643	64,953	68,826
Deductions during period:
Disposition of properties	(53,611)	(95,821)	(74,264)
Balance at end of period	$ 698,146	$ 693,114	$ 723,982	$ 14,543	$ 18,809	$ 8,143	$ 11,718	$ 9,553	$ 12,101	$ 7,754	$ 13,046	$ 38,729	$ 19,037	$ 15,785	$ 38,766	$ 41,436	$ 4,194	$ 14,195	$ 15,446	$ 23,787	$ 13,429	$ 9,365	$ 8,312	$ 16,933	$ 17,671	$ 17,870	$ 9,776	$ 12,158	$ 22,528	$ 29,461	$ 6,199	$ 9,682	$ 11,075	$ 8,721	$ 17,339	$ 5,158	$ 1,980	$ 3,256	$ 16,084	$ 21,430	$ 11,463	$ 12,518	$ 13,168	$ 14,652	$ 17,089	$ 10,737	$ 9,267	$ 20,545	$ 10,471	$ 12,240	$ 697,619	$ 527