Debt (Details) - USD ($) $ in Thousands		Dec. 31, 2017		Oct. 13, 2017	Dec. 31, 2016		Nov. 12, 2015
Mortgage Loans on Real Estate [Line Items]
Debt		$ 890,573
Total debt		885,237			$ 996,251
First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Debt		70,573			142,890
Mortgage loan premiums and deferred financing costs	[1]	(116)			108
Total debt		$ 70,457			142,998
Sofitel Philadelphia [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate		3.90%
Debt		$ 0			44,320
Hotel Zelos San Francisco [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate		5.94%
Debt		$ 0			25,718
The Westin San Diego Gaslamp Quarter [Member]
Mortgage Loans on Real Estate [Line Items]
Deferred financing costs, net		$ (100)
The Westin San Diego Gaslamp Quarter [Member] | First Mortgage [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate		3.69%
Debt		$ 70,573			72,852
Term Loan [Member]
Mortgage Loans on Real Estate [Line Items]
Debt		675,000			675,000
Deferred financing costs, net		(4,594)			(3,207)
Total debt		670,406			671,793
First Term Loan [Member] | Term Loan [Member]
Mortgage Loans on Real Estate [Line Items]
Debt	[2]	300,000			300,000
Second Term Loan [Member] | Term Loan [Member]
Mortgage Loans on Real Estate [Line Items]
Debt		65,000	[2]	$ 65,000	175,000	[2]
Third Term Loan [Member] | Term Loan [Member]
Mortgage Loans on Real Estate [Line Items]
Debt	[2]	200,000			200,000
Fourth Term Loan [Member] | Term Loan [Member]
Mortgage Loans on Real Estate [Line Items]
Debt		$ 110,000	[2]	$ 110,000	0	[2]
Series A Notes [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate		4.70%					4.70%
Series B Notes [Member]
Mortgage Loans on Real Estate [Line Items]
Interest Rate		4.93%					4.93%
Unsecured Debt [Member] | Revolving Credit Facility [Member]
Mortgage Loans on Real Estate [Line Items]
Debt		$ 45,000			82,000
Unsecured Debt [Member] | Senior Unsecured Revolving Credit Facility [Member] | Revolving Credit Facility [Member]
Mortgage Loans on Real Estate [Line Items]
Debt	[3]	45,000			82,000
Unsecured Debt [Member] | PHL Unsecured Revolving Credit Facility [Member] | Revolving Credit Facility [Member]
Mortgage Loans on Real Estate [Line Items]
Debt	[4]	0			0
Senior Unsecured Notes [Member]
Mortgage Loans on Real Estate [Line Items]
Debt		100,000			100,000
Deferred financing costs, net		(626)			(540)
Total debt		99,374			99,460
Senior Unsecured Notes [Member] | Series A Notes [Member]
Mortgage Loans on Real Estate [Line Items]
Debt		60,000			60,000
Senior Unsecured Notes [Member] | Series B Notes [Member]
Mortgage Loans on Real Estate [Line Items]
Debt		$ 40,000			$ 40,000

[1] Loan premium on assumed mortgage loan recorded in purchase accounting for the Hotel Zelos San Francisco.

[2] Borrowings under the term loan facilities bear interest at floating rates equal to, at the Company's option, either (i) LIBOR plus an applicable margin or (ii) a Base Rate plus an applicable margin. At December 31, 2017, the Company had interest rate swaps to effectively fix the interest rate for the First Term Loan, the Third Term Loan and a portion of the Fourth Term Loan. The Company had interest rate swaps on the full amounts outstanding, except for $65.0 million on the Second Term Loan and $10.0 million on the Fourth Term Loan. At December 31, 2016, the Company had interest rate swaps on all of the Term Loans, except for $75.0 million on the Second Term Loan. See "Derivative and Hedging Activities" above.

[3] Borrowings bear interest at floating rates equal to, at the Company's option, either (i) LIBOR plus an applicable margin or (ii) an Adjusted Base Rate (as defined in the applicable credit agreement) plus an applicable margin.

[4] Borrowings bear interest at floating rates equal to, at the Company's option, either (i) LIBOR plus an applicable margin or (ii) an Eurocurrency Rate (as defined in the applicable credit agreement) plus an applicable margin.