Schedule III - Real Estate And Accumulated Depreciation (Real Estate And Accumulated Depreciation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Gross Amounts at which Carried at Close of Period
Total	$ 2,228,864	$ 2,206,701	$ 2,159,282	$ 2,010,621
Accumulated Depreciation	(340,499)	$ (277,580)	$ (238,213)	$ (222,512)
Real Estate Investment [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	(333,948)
Initial Costs
Land	518,243
Buildings & Improvements	1,491,901
Costs Capitalized Subsequent to Acquisition [Abstract]
Land	0
Buildings & Improvements	218,720
Gross Amounts at which Carried at Close of Period
Land	518,243
Buildings & Improvements	1,710,621
Total	2,228,864
Accumulated Depreciation	(340,499)
Net Book Value	1,888,365
Courtyard by Marriot Brookline, Brookline, MA [Member] | Hotel [Member]
Initial Costs
Land	0
Buildings & Improvements	47,414
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	4,916
Gross Amounts at which Carried at Close of Period
Land	0
Buildings & Improvements	52,330
Total	52,330
Accumulated Depreciation	(20,632)
Net Book Value	$ 31,698
Date of Acquisition	Jun. 16, 2005
Annapolis Waterfront Hotel, Annapolis, MD [Member] | Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (28,000)
Initial Costs
Land	0
Buildings & Improvements	43,251
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	650
Gross Amounts at which Carried at Close of Period
Land	0
Buildings & Improvements	43,901
Total	43,901
Accumulated Depreciation	(1,932)
Net Book Value	$ 41,969
Date of Acquisition	Mar. 28, 2018
Hilton Garden Inn JFK, JFK Airport, NY [Member] | Hotel [Member]
Initial Costs
Land	$ 0
Buildings & Improvements	25,018
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	3,639
Gross Amounts at which Carried at Close of Period
Land	0
Buildings & Improvements	28,657
Total	28,657
Accumulated Depreciation	(11,459)
Net Book Value	$ 17,198
Date of Acquisition	Feb. 16, 2006
Holiday Inn Express Cambridge, Cambridge, MA [Member] | Hotel [Member]
Initial Costs
Land	$ 1,956
Buildings & Improvements	9,793
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	3,870
Gross Amounts at which Carried at Close of Period
Land	1,956
Buildings & Improvements	13,663
Total	15,619
Accumulated Depreciation	(5,835)
Net Book Value	$ 9,784
Date of Acquisition	May 03, 2006
Hyatt House White Plains, White Plains, NY [Member] | Hotel [Member]
Initial Costs
Land	$ 8,823
Buildings & Improvements	30,273
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	11,306
Gross Amounts at which Carried at Close of Period
Land	8,823
Buildings & Improvements	41,579
Total	50,402
Accumulated Depreciation	(14,530)
Net Book Value	$ 35,872
Date of Acquisition	Dec. 28, 2006
Hampton Inn Seaport, Seaport, NY [Member] | Hotel [Member]
Initial Costs
Land	$ 7,816
Buildings & Improvements	19,040
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	1,544
Gross Amounts at which Carried at Close of Period
Land	7,816
Buildings & Improvements	20,584
Total	28,400
Accumulated Depreciation	(7,216)
Net Book Value	$ 21,184
Date of Acquisition	Feb. 01, 2007
Gate Hotel JFK Airport, JFK Airport, NY [Member] | Hotel [Member]
Initial Costs
Land	$ 0
Buildings & Improvements	27,315
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	2,460
Gross Amounts at which Carried at Close of Period
Land	0
Buildings & Improvements	29,775
Total	29,775
Accumulated Depreciation	(9,756)
Net Book Value	$ 20,019
Date of Acquisition	Jun. 13, 2008
Hampton Inn Center City/Convention Center, Philadelphia, PA [Member] | Hotel [Member]
Initial Costs
Land	$ 3,490
Buildings & Improvements	24,382
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	11,699
Gross Amounts at which Carried at Close of Period
Land	3,490
Buildings & Improvements	36,081
Total	39,571
Accumulated Depreciation	(16,850)
Net Book Value	$ 22,721
Date of Acquisition	Feb. 15, 2006
Duane Street Hotel, Tribeca, NY [Member] | Hotel [Member]
Initial Costs
Land	$ 8,213
Buildings & Improvements	12,869
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	2,305
Gross Amounts at which Carried at Close of Period
Land	8,213
Buildings & Improvements	15,174
Total	23,387
Accumulated Depreciation	(5,496)
Net Book Value	$ 17,891
Date of Acquisition	Jan. 04, 2008
NU Hotel Brooklyn, Brooklyn, NY [Member] | Hotel [Member]
Initial Costs
Land	$ 0
Buildings & Improvements	22,042
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	1,876
Gross Amounts at which Carried at Close of Period
Land	0
Buildings & Improvements	23,918
Total	23,918
Accumulated Depreciation	(7,781)
Net Book Value	$ 16,137
Date of Acquisition	Jan. 14, 2008
Hilton Garden Inn Tribeca, Tribeca, NY [Member] | Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (45,450)
Initial Costs
Land	21,077
Buildings & Improvements	42,955
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	1,211
Gross Amounts at which Carried at Close of Period
Land	21,077
Buildings & Improvements	44,166
Total	65,243
Accumulated Depreciation	(12,238)
Net Book Value	$ 53,005
Date of Acquisition	May 01, 2009
Hampton Inn Washington, D.C., Washington, DC [Member] | Hotel [Member]
Initial Costs
Land	$ 9,335
Buildings & Improvements	58,048
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	2,994
Gross Amounts at which Carried at Close of Period
Land	9,335
Buildings & Improvements	61,042
Total	70,377
Accumulated Depreciation	(14,930)
Net Book Value	$ 55,447
Date of Acquisition	Sep. 01, 2010
Sheraton Wilmington South, Wilmington South, DE [Member] | Hotel [Member]
Initial Costs
Land	$ 1,765
Buildings & Improvements	16,929
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	5,068
Gross Amounts at which Carried at Close of Period
Land	1,765
Buildings & Improvements	21,997
Total	23,762
Accumulated Depreciation	(7,528)
Net Book Value	$ 16,234
Date of Acquisition	Dec. 21, 2010
The Capitol Hill Hotel, Washington, DC [Member] | Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (25,000)
Initial Costs
Land	8,095
Buildings & Improvements	35,141
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	4,924
Gross Amounts at which Carried at Close of Period
Land	8,095
Buildings & Improvements	40,065
Total	48,160
Accumulated Depreciation	(11,508)
Net Book Value	$ 36,652
Date of Acquisition	Apr. 15, 2011
Courtyard by Marriott Los Angeles Westside, LA Westside, CA [Member] | Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (35,000)
Initial Costs
Land	13,489
Buildings & Improvements	27,025
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	4,952
Gross Amounts at which Carried at Close of Period
Land	13,489
Buildings & Improvements	31,977
Total	45,466
Accumulated Depreciation	(9,912)
Net Book Value	$ 35,554
Date of Acquisition	May 19, 2011
Cadillac Hotel & Beach Club, Miami, FL [Member] | Hotel [Member]
Initial Costs
Land	$ 35,700
Buildings & Improvements	55,805
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	44,315
Gross Amounts at which Carried at Close of Period
Land	35,700
Buildings & Improvements	100,120
Total	135,820
Accumulated Depreciation	(21,328)
Net Book Value	$ 114,492
Date of Acquisition	Nov. 16, 2011
The Rittenhouse Hotel, Philadelphia, PA [Member] | Hotel [Member]
Initial Costs
Land	$ 7,108
Buildings & Improvements	29,556
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	27,868
Gross Amounts at which Carried at Close of Period
Land	7,108
Buildings & Improvements	57,424
Total	64,532
Accumulated Depreciation	(22,271)
Net Book Value	$ 42,261
Date of Acquisition	Mar. 01, 2012
The Boxer Boston, Boston, MA [Member] | Hotel [Member]
Initial Costs
Land	$ 1,456
Buildings & Improvements	14,954
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	1,112
Gross Amounts at which Carried at Close of Period
Land	1,456
Buildings & Improvements	16,066
Total	17,522
Accumulated Depreciation	(4,314)
Net Book Value	$ 13,208
Date of Acquisition	May 07, 2012
Holiday Inn Express Chelsea, Manhattan, NY [Member] | Hotel [Member]
Initial Costs
Land	$ 30,329
Buildings & Improvements	57,016
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	2,049
Gross Amounts at which Carried at Close of Period
Land	30,329
Buildings & Improvements	59,065
Total	89,394
Accumulated Depreciation	(11,860)
Net Book Value	$ 77,534
Date of Acquisition	Jun. 18, 2012
Hyatt Union Square, Union Square, New York, NY [Member] | Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (56,000)
Initial Costs
Land	32,940
Buildings & Improvements	79,300
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	4,028
Gross Amounts at which Carried at Close of Period
Land	32,940
Buildings & Improvements	83,328
Total	116,268
Accumulated Depreciation	(15,169)
Net Book Value	$ 101,099
Date of Acquisition	Apr. 09, 2013
Courtyard By Marriott Downtown San Diego, San Deigo, CA [Member] | Hotel [Member]
Initial Costs
Land	$ 15,656
Buildings & Improvements	51,674
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	2,138
Gross Amounts at which Carried at Close of Period
Land	15,656
Buildings & Improvements	53,812
Total	69,468
Accumulated Depreciation	(9,797)
Net Book Value	$ 59,671
Date of Acquisition	May 30, 2013
Residence Inn Miami Coconut Grove, Coconut Grove, FL [Member] | Hotel [Member]
Initial Costs
Land	$ 4,146
Buildings & Improvements	17,456
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	7,487
Gross Amounts at which Carried at Close of Period
Land	4,146
Buildings & Improvements	24,943
Total	29,089
Accumulated Depreciation	(8,161)
Net Book Value	$ 20,928
Date of Acquisition	Jun. 12, 2013
The Hotel Milo, Santa Barbara, CA [Member] | Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (22,227)
Initial Costs
Land	0
Buildings & Improvements	55,080
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	4,900
Gross Amounts at which Carried at Close of Period
Land	0
Buildings & Improvements	59,980
Total	59,980
Accumulated Depreciation	(10,318)
Net Book Value	$ 49,662
Date of Acquisition	Feb. 28, 2014
Hilton Garden Inn Manhattan Midtown East, Midtown East, NY [Member] | Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (44,325)
Initial Costs
Land	45,480
Buildings & Improvements	60,762
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	409
Gross Amounts at which Carried at Close of Period
Land	45,480
Buildings & Improvements	61,171
Total	106,651
Accumulated Depreciation	(8,676)
Net Book Value	$ 97,975
Date of Acquisition	May 27, 2014
Parrot Key Hotel & Villas, Key West, FL [Member] | Hotel [Member]
Initial Costs
Land	$ 57,889
Buildings & Improvements	33,959
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	14,161
Gross Amounts at which Carried at Close of Period
Land	57,889
Buildings & Improvements	48,120
Total	106,009
Accumulated Depreciation	(7,641)
Net Book Value	$ 98,368
Date of Acquisition	May 07, 2014
The Winter Haven Hotel Miami Beach, Miami Beach, FL [Member] | Hotel [Member]
Initial Costs
Land	$ 5,400
Buildings & Improvements	18,147
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	694
Gross Amounts at which Carried at Close of Period
Land	5,400
Buildings & Improvements	18,841
Total	24,241
Accumulated Depreciation	(3,139)
Net Book Value	$ 21,102
Date of Acquisition	Dec. 20, 2013
The Blue Moon Hotel Miami Beach, Miami Beach, FL [Member] | Hotel [Member]
Initial Costs
Land	$ 4,874
Buildings & Improvements	20,354
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	981
Gross Amounts at which Carried at Close of Period
Land	4,874
Buildings & Improvements	21,335
Total	26,209
Accumulated Depreciation	(3,579)
Net Book Value	$ 22,630
Date of Acquisition	Dec. 20, 2013
The St. Gregory Hotel, Dupont Circle, Washington D.C. [Member] | Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (22,857)
Initial Costs
Land	23,764
Buildings & Improvements	33,005
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	7,470
Gross Amounts at which Carried at Close of Period
Land	23,764
Buildings & Improvements	40,475
Total	64,239
Accumulated Depreciation	(6,339)
Net Book Value	$ 57,900
Date of Acquisition	Jun. 16, 2015
TownePlace Suites Sunnyvale, Sunnyvale, CA [Member] | Hotel [Member]
Initial Costs
Land	$ 0
Buildings & Improvements	18,999
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	666
Gross Amounts at which Carried at Close of Period
Land	0
Buildings & Improvements	19,665
Total	19,665
Accumulated Depreciation	(2,348)
Net Book Value	$ 17,317
Date of Acquisition	Aug. 25, 2015
The Ritz-Carlton Georgetown, Washington D.C. [Member] | Hotel [Member]
Initial Costs
Land	$ 17,825
Buildings & Improvements	29,584
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	3,963
Gross Amounts at which Carried at Close of Period
Land	17,825
Buildings & Improvements	33,547
Total	51,372
Accumulated Depreciation	(3,933)
Net Book Value	$ 47,439
Date of Acquisition	Dec. 29, 2015
The Sanctuary Beach Resort, Marina, CA [Member] | Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (14,489)
Initial Costs
Land	20,278
Buildings & Improvements	17,319
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	6,725
Gross Amounts at which Carried at Close of Period
Land	20,278
Buildings & Improvements	24,044
Total	44,322
Accumulated Depreciation	(3,763)
Net Book Value	$ 40,559
Date of Acquisition	Jan. 28, 2016
Hilton Garden Inn M Street, Washington, DC [Member] | Hotel [Member]
Initial Costs
Land	$ 30,793
Buildings & Improvements	67,420
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	179
Gross Amounts at which Carried at Close of Period
Land	30,793
Buildings & Improvements	67,599
Total	98,392
Accumulated Depreciation	(6,475)
Net Book Value	$ 91,917
Date of Acquisition	Mar. 09, 2016
The Envoy Boston Seaport, Boston, MA [Member] | Hotel [Member]
Initial Costs
Land	$ 25,264
Buildings & Improvements	75,979
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	3,725
Gross Amounts at which Carried at Close of Period
Land	25,264
Buildings & Improvements	79,704
Total	104,968
Accumulated Depreciation	(7,299)
Net Book Value	$ 97,669
Date of Acquisition	Jul. 21, 2016
Courtyard by Marriott Sunnyvale, Sunnyvale, CA [Member] | Hotel [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ (40,600)
Initial Costs
Land	17,694
Buildings & Improvements	53,272
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	59
Gross Amounts at which Carried at Close of Period
Land	17,694
Buildings & Improvements	53,331
Total	71,025
Accumulated Depreciation	(4,269)
Net Book Value	$ 66,756
Date of Acquisition	Oct. 20, 2016
Mystic Marriott Hotel & Spa, Groton, CT [Member] | Hotel [Member]
Initial Costs
Land	$ 1,420
Buildings & Improvements	40,440
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	9,646
Gross Amounts at which Carried at Close of Period
Land	1,420
Buildings & Improvements	50,086
Total	51,506
Accumulated Depreciation	(4,932)
Net Book Value	$ 46,574
Date of Acquisition	Jan. 03, 2017
The Ritz-Carlton Coconut Grove, Coconut Grove, FL [Member] | Hotel [Member]
Initial Costs
Land	$ 5,185
Buildings & Improvements	30,825
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	9,391
Gross Amounts at which Carried at Close of Period
Land	5,185
Buildings & Improvements	40,216
Total	45,401
Accumulated Depreciation	(3,983)
Net Book Value	$ 41,418
Date of Acquisition	Feb. 01, 2017
The Pan Pacific Hotel Seattle, Seattle, WA [Member] | Hotel [Member]
Initial Costs
Land	$ 13,079
Buildings & Improvements	59,255
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	308
Gross Amounts at which Carried at Close of Period
Land	13,079
Buildings & Improvements	59,563
Total	72,642
Accumulated Depreciation	(4,228)
Net Book Value	$ 68,414
Date of Acquisition	Feb. 21, 2017
Philadelphia Westin, Philadelphia, PA [Member] | Hotel [Member]
Initial Costs
Land	$ 19,154
Buildings & Improvements	103,406
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	1,467
Gross Amounts at which Carried at Close of Period
Land	19,154
Buildings & Improvements	104,873
Total	124,027
Accumulated Depreciation	(6,660)
Net Book Value	$ 117,367
Date of Acquisition	Jun. 29, 2017
The Ambrose Hotel, Santa Monica, CA [Member] | Hotel [Member]
Initial Costs
Land	$ 18,750
Buildings & Improvements	26,839
Costs Capitalized Subsequent to Acquisition [Abstract]
Buildings & Improvements	1,565
Gross Amounts at which Carried at Close of Period
Land	18,750
Buildings & Improvements	28,404
Total	47,154
Accumulated Depreciation	(2,414)
Net Book Value	$ 44,740
Date of Acquisition	Dec. 01, 2016
Minimum [Member] | Building and Improvements [Member]
Gross Amounts at which Carried at Close of Period
Useful life of buildings and improvements	7 years
Maximum [Member] | Building and Improvements [Member]
Gross Amounts at which Carried at Close of Period
Useful life of buildings and improvements	40 years