Debt - Schedule of Mortgage Debt Obligations (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2021		Aug. 16, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Outstanding Balance		$ 1,372,421			$ 1,488,570
Unamortized fair value adjustment of assumed debt		1,070
Unamortized debt issuance costs		(6,870)
Total		$ 501,916			512,546
Hampton Cape Canaveral, FL [Member]
Debt Instrument [Line Items]
Loan Assumption or Origination Date	[1],[2]	Apr. 30, 2020
Note payable, principal assumed or originated	[1],[2]	$ 10,852
Outstanding Balance	[1],[2]				10,275
Home2 Suites Cape Canaveral, FL [Member]
Debt Instrument [Line Items]
Loan Assumption or Origination Date	[1],[2]	Apr. 30, 2020
Note payable, principal assumed or originated	[1],[2]	$ 10,852
Outstanding Balance	[1],[2]				10,275
Hampton Colorado Springs, CO [Member]
Debt Instrument [Line Items]
Interest Rate	[3],[4]	6.25%
Loan Assumption or Origination Date	[4]	Sep. 01, 2016
Note payable, principal assumed or originated	[4]	$ 7,923
Outstanding Balance	[4]				7,317
Courtyard Franklin, TN [Member]
Debt Instrument [Line Items]
Interest Rate	[3],[4]	6.25%
Loan Assumption or Origination Date	[4]	Sep. 01, 2016
Note payable, principal assumed or originated	[4]	$ 14,679
Outstanding Balance	[4]				13,563
Residence Inn Franklin, TN [Member]
Debt Instrument [Line Items]
Interest Rate	[3],[4]	6.25%
Loan Assumption or Origination Date	[4]	Sep. 01, 2016
Note payable, principal assumed or originated	[4]	$ 14,679
Outstanding Balance	[4]				13,563
Residence Inn, Seattle, Washington [Member]
Debt Instrument [Line Items]
Interest Rate		4.00%	[3],[5]	4.00%
Loan Assumption or Origination Date	[5]	Aug. 16, 2021
Maturity Date	[5]	Aug. 16, 2022
Note payable, principal assumed or originated		$ 56,000	[5]	$ 56,000
Outstanding Balance	[5]	$ 56,000
Hilton Garden Inn Grapevine, TX [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.89%
Loan Assumption or Origination Date		Aug. 29, 2012
Maturity Date		Sep. 01, 2022
Note payable, principal assumed or originated		$ 11,810
Outstanding Balance		$ 9,167			9,434
Courtyard Collegeville/Philadelphia, PA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.89%
Loan Assumption or Origination Date		Aug. 30, 2012
Maturity Date		Sep. 01, 2022
Note payable, principal assumed or originated		$ 12,650
Outstanding Balance		$ 9,818			10,105
Courtyard Hattiesburg, MS [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	5.00%
Loan Assumption or Origination Date		Mar. 01, 2014
Maturity Date		Sep. 01, 2022
Note payable, principal assumed or originated		$ 5,732
Outstanding Balance		$ 4,596			4,729
Courtyard Kirkland W A
Debt Instrument [Line Items]
Interest Rate	[3]	5.00%
Loan Assumption or Origination Date		Mar. 01, 2014
Maturity Date		Sep. 01, 2022
Note payable, principal assumed or originated		$ 12,145
Outstanding Balance		$ 9,737			10,018
Courtyard Rancho Bernardo / San Diego, CA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	5.00%
Loan Assumption or Origination Date		Mar. 01, 2014
Maturity Date		Sep. 01, 2022
Note payable, principal assumed or originated		$ 15,060
Outstanding Balance		$ 12,074			12,422
Residence Inn Seattle, WA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.96%
Loan Assumption or Origination Date		Mar. 01, 2014
Maturity Date		Sep. 01, 2022
Note payable, principal assumed or originated		$ 28,269
Outstanding Balance		$ 22,638			23,294
Embassy Suites Anchorage, AK [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.97%
Loan Assumption or Origination Date		Sep. 13, 2012
Maturity Date		Oct. 01, 2022
Note payable, principal assumed or originated		$ 23,230
Outstanding Balance		$ 18,139			18,660
Courtyard Somerset, NJ [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.73%
Loan Assumption or Origination Date		Mar. 01, 2014
Maturity Date		Oct. 06, 2022
Note payable, principal assumed or originated		$ 8,750
Outstanding Balance		$ 6,973			7,179
Homewood Suites Tukwila, WA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.73%
Loan Assumption or Origination Date		Mar. 01, 2014
Maturity Date		Oct. 06, 2022
Note payable, principal assumed or originated		$ 9,431
Outstanding Balance		$ 7,516			7,737
Homewood Suites Huntsville, AL [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.12%
Loan Assumption or Origination Date		Mar. 01, 2014
Maturity Date		Feb. 06, 2023
Note payable, principal assumed or originated		$ 8,306
Outstanding Balance		$ 6,542			6,742
Courtyard Prattville, AL [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.12%
Loan Assumption or Origination Date		Mar. 01, 2014
Maturity Date		Feb. 06, 2023
Note payable, principal assumed or originated		$ 6,596
Outstanding Balance		$ 5,195			5,354
Residence Inn San Diego, CA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	3.97%
Loan Assumption or Origination Date		Mar. 01, 2014
Maturity Date		Mar. 06, 2023
Note payable, principal assumed or originated		$ 18,600
Outstanding Balance		$ 14,610			15,061
Homewood Suites Miami, FL [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.02%
Loan Assumption or Origination Date		Mar. 01, 2014
Maturity Date		Apr. 01, 2023
Note payable, principal assumed or originated		$ 16,677
Outstanding Balance		$ 13,136			13,537
Homewood Suites New Orleans, LA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.36%
Loan Assumption or Origination Date		Jul. 17, 2014
Maturity Date		Aug. 11, 2024
Note payable, principal assumed or originated		$ 27,000
Outstanding Balance		$ 22,181			22,766
Residence Inn Westford, MA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.28%
Loan Assumption or Origination Date		Mar. 18, 2015
Maturity Date		Apr. 11, 2025
Note payable, principal assumed or originated		$ 10,000
Outstanding Balance		$ 8,393			8,605
Hilton Garden Inn Denver, CO [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.46%
Loan Assumption or Origination Date		Sep. 01, 2016
Maturity Date		Jun. 11, 2025
Note payable, principal assumed or originated		$ 34,118
Outstanding Balance		$ 29,663			30,387
Courtyard Oceanside, CA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.28%
Loan Assumption or Origination Date		Sep. 01, 2016
Maturity Date		Oct. 01, 2025
Note payable, principal assumed or originated		$ 13,655
Outstanding Balance		$ 12,391			12,605
Hilton Garden Inn Omaha, NE [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.28%
Loan Assumption or Origination Date		Sep. 01, 2016
Maturity Date		Oct. 01, 2025
Note payable, principal assumed or originated		$ 22,682
Outstanding Balance		$ 20,581			20,936
Hampton Boise, ID [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.37%
Loan Assumption or Origination Date		May 26, 2016
Maturity Date		Jun. 11, 2026
Note payable, principal assumed or originated		$ 24,000
Outstanding Balance		$ 21,799			22,146
Courtyard Burbank, CA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	3.55%
Loan Assumption or Origination Date		Nov. 03, 2016
Maturity Date		Dec. 01, 2026
Note payable, principal assumed or originated		$ 25,564
Outstanding Balance		$ 22,482			23,315
Courtyard San Diego, CA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	3.55%
Loan Assumption or Origination Date		Nov. 03, 2016
Maturity Date		Dec. 01, 2026
Note payable, principal assumed or originated		$ 25,473
Outstanding Balance		$ 22,402			23,232
Hampton San Diego, CA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	3.55%
Loan Assumption or Origination Date		Nov. 03, 2016
Maturity Date		Dec. 01, 2026
Note payable, principal assumed or originated		$ 18,963
Outstanding Balance		$ 16,677			17,295
SpringHill Suites Burbank, CA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	3.94%
Loan Assumption or Origination Date		Mar. 09, 2018
Maturity Date		Apr. 01, 2028
Note payable, principal assumed or originated		$ 28,470
Outstanding Balance		$ 26,264			27,078
Courtyard Santa Ana, CA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	3.94%
Loan Assumption or Origination Date		Mar. 09, 2018
Maturity Date		Apr. 01, 2028
Note payable, principal assumed or originated		$ 15,530
Outstanding Balance		$ 14,326			14,770
Courtyard Richmond, VA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	3.40%
Loan Assumption or Origination Date		Feb. 12, 2020
Maturity Date		Mar. 11, 2030
Note payable, principal assumed or originated		$ 14,950
Outstanding Balance		$ 14,521			14,739
Residence Inn Richmond, VA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	3.40%
Loan Assumption or Origination Date		Feb. 12, 2020
Maturity Date		Mar. 11, 2030
Note payable, principal assumed or originated		$ 14,950
Outstanding Balance		$ 14,521			14,739
Residence Inn Portland, ME [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	3.43%
Loan Assumption or Origination Date		Mar. 02, 2020
Maturity Date		Apr. 01, 2030
Note payable, principal assumed or originated		$ 33,500
Outstanding Balance		$ 33,500			33,500
Homewood Suites San Jose, CA [Member]
Debt Instrument [Line Items]
Interest Rate	[3]	4.22%
Loan Assumption or Origination Date		Dec. 22, 2017
Maturity Date		May 01, 2038
Note payable, principal assumed or originated		$ 30,000
Outstanding Balance		26,579			27,392
Aggregate Properties [Member]
Debt Instrument [Line Items]
Note payable, principal assumed or originated		631,096
Outstanding Balance		502,421			512,770
Unamortized fair value adjustment of assumed debt		1,070			1,624
Unamortized debt issuance costs		$ (1,575)			$ (1,848)

[1] Interest rate was variable based on one-month LIBOR plus 3.00%. As of April 12, 2021, the date the loan was fully repaid, the interest rate was 3.11%. In July 2020, the principal amount of the note was reduced by approximately $1.1 million representing a credit from the developer for shared construction savings.

[2] Loan was repaid in full on April 12, 2021.

[3] Interest rates are the rates per the loan agreement. For loans assumed, the Company adjusted the interest rates per the loan agreement to market rates and is amortizing the adjustments to interest expense over the life of the loan.

[4] Loan was repaid in full on June 4, 2021.

[5] On August 16, 2021, the Company acquired the fee interest in the land at the Seattle, Washington Residence Inn, previously held under a finance ground lease, for a purchase price of $80.0 million, consisting of a $24.0 million cash payment and a one-year note payable to the seller for $56.0 million.