Notes Payable (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017 USD ($) property	Dec. 31, 2016 USD ($) property	Jan. 31, 2017
Notes payable
Total notes payable	$ 992,149	$ 935,944
Current portion of notes payable	10,431	186,034
Less: current portion of deferred financing fees	(1,270)	(1,105)
Current portion of notes payable, net	9,161	184,929
Notes payable, less current portion	981,718	749,910
Less: long-term portion of deferred financing fees	(4,084)	(3,536)
Carrying value of notes payable, less current portion	$ 977,634	$ 746,374
Notes payable maturing in various years
Notes payable
Number of hotels provided as collateral | property	4	5
Total notes payable	$ 347,233	$ 528,604
Notes payable maturing in various years | Minimum
Notes payable
Fixed interest rate (as a percent)	4.12%	4.12%
Notes payable maturing in various years | Maximum
Notes payable
Fixed interest rate (as a percent)	5.95%	5.95%
Hilton San Diego Bayfront mortgage payable
Notes payable
Number of hotels provided as collateral | property	1	1
Interest rate, description of reference rate	one-month LIBOR	one-month LIBOR
Interest rate added to base rate (as a percent)	2.25%	2.25%
Total notes payable	$ 219,916	$ 222,340
$85.0 million term loan
Notes payable
Term loan total interest rate, including effect of swap agreement	3.391%	3.391%
Total notes payable	$ 85,000	$ 85,000
$85.0 million term loan | Minimum
Notes payable
Interest rate added to base rate (as a percent)	1.80%	1.80%
$85.0 million term loan | Maximum
Notes payable
Interest rate added to base rate (as a percent)	2.55%	2.55%
$100.0 million term loan
Notes payable
Term loan total interest rate, including effect of swap agreement	3.653%	3.653%
Total notes payable	$ 100,000	$ 100,000
$100.0 million term loan | Minimum
Notes payable
Interest rate added to base rate (as a percent)	1.80%	1.80%
$100.0 million term loan | Maximum
Notes payable
Interest rate added to base rate (as a percent)	2.55%	2.55%
Series A Senior Notes
Notes payable
Fixed interest rate (as a percent)	4.69%		4.69%
Total notes payable	$ 120,000
Series B Senior Notes
Notes payable
Fixed interest rate (as a percent)	4.79%		4.79%
Total notes payable	$ 120,000
Interest Rate Swap | $85.0 million term loan
Notes payable
Fixed rate under interest rate swap agreement	1.591%	1.591%
Interest Rate Swap | $100.0 million term loan
Notes payable
Fixed rate under interest rate swap agreement	1.853%	1.853%
Not designated as hedging instrument | Interest Rate Cap | Hilton San Diego Bayfront mortgage payable
Notes payable
Interest rate, description of reference rate	1-Month LIBOR	1-Month LIBOR
Not designated as hedging instrument | Interest Rate Swap | $85.0 million term loan
Notes payable
Interest rate, description of reference rate	1-Month LIBOR	1-Month LIBOR
Fixed rate under interest rate swap agreement	1.591%	1.591%
Term loan total interest rate, including effect of swap agreement	3.391%	3.391%
Not designated as hedging instrument | Interest Rate Swap | $100.0 million term loan
Notes payable
Interest rate, description of reference rate	1-Month LIBOR	1-Month LIBOR
Fixed rate under interest rate swap agreement	1.853%	1.853%
Term loan total interest rate, including effect of swap agreement	3.653%	3.653%