Debt (Details)	1 Months Ended							12 Months Ended
	Sep. 30, 2014 USD ($)	Aug. 31, 2014 USD ($) Hotels	Jul. 31, 2014 USD ($) Hotels	May. 31, 2014 USD ($)	Apr. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Jan. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) Hotels	Dec. 31, 2014 USD ($) Hotels	Dec. 31, 2013 USD ($)	Sep. 30, 2015 Hotels
Debt Instrument [Line Items]
Number of encumbered hotels (in hotels) | Hotels								22
Decrease in Commitment Fee								0.05%
Line of Credit Facility, Commitment Fee Percentage								0.35%
Long-term Debt								$ 1,427,954,000	$ 1,585,867,000
Number of Real Estate Properties | Hotels									13
Debt extinguishment								(30,909,000)	$ (4,770,000)	$ 0
Aggregate net book value								1,100,000,000
Interest expense								79,118,000	90,695,000	103,787,000
Interest income								24,000	48,000	78,000
Capitalized interest								6,000,000	16,300,000	$ 12,800,000
Maturities of Long-term Debt [Abstract]
2016								2,488,000
2017								87,810,000
2018								2,954,000
2019								193,106,000
2020								3,245,000
Thereafter								1,138,351,000
Aggregate principal outstanding								1,427,954,000
Long-term debt								$ 1,427,954,000	$ 1,585,867,000
Libor Plus Two Point Five Percent Due July 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis			LIBOR
Debt Instrument, Basis Spread on Variable Rate			2.50%
Long-term Debt			$ 140,000,000
Number of Real Estate Properties | Hotels			3
Maturities of Long-term Debt [Abstract]
Long-term debt			$ 140,000,000
Libor Plus Three Point Zero Percent Due March 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis									LIBOR
Debt Instrument, Basis Spread on Variable Rate									3.00%
Unsecured Debt [Member] | Senior Notes, Six Point Zero Zero Percent Due June 2025 [Member]
Debt Instrument [Line Items]
Number of encumbered hotels (in hotels) | Hotels								0
Interest rate								6.00%
Long-term Debt								$ 475,000,000	$ 0
Maturities of Long-term Debt [Abstract]
Long-term debt								$ 475,000,000	0
Line of Credit [Member]
Debt Instrument [Line Items]
Term of debt extension								1 year
Line of Credit [Member] | Libor Plus Two Point Seven Five Percent Due June 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum								2.25%
Number of encumbered hotels (in hotels) | Hotels								7
Debt Instrument, Description of Variable Rate Basis								LIBOR
Debt Instrument, Basis Spread on Variable Rate								2.75%
Long-term Debt								$ 190,000,000	0
Credit facility, capacity								400,000,000
Debt extinguishment								164,000
Maturities of Long-term Debt [Abstract]
Long-term debt								$ 190,000,000	0
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum								2.75%
Debt Instrument, Interest Rate, Increase (Decrease)								3.375%
Line of Credit [Member] | Libor Plus Three Point Three Seven Five Percent Due June 2016 [Member]
Debt Instrument [Line Items]
Credit facility, capacity								$ 225,000,000
Mortgages [Member]
Debt Instrument [Line Items]
Notional amount of interest rate cap								$ 140,000,000	140,000,000
Mortgages [Member] | Libor Plus Two Point Seven Five Percent Due June 2019 [Member]
Debt Instrument [Line Items]
Number of encumbered hotels (in hotels) | Hotels											1
Mortgages [Member] | Libor Plus Two Point Five Percent Due July 2017 [Member]
Debt Instrument [Line Items]
Number of encumbered hotels (in hotels) | Hotels								3
Debt Instrument, Description of Variable Rate Basis								LIBOR
Debt Instrument, Basis Spread on Variable Rate								2.50%
Repayments of Secured Debt								$ 140,000,000
Debt extinguishment								$ 2,000,000
Mortgages [Member] | Libor Plus Three Point Zero Percent Due March 2017 [Member]
Debt Instrument [Line Items]
Number of encumbered hotels (in hotels) | Hotels								3
Debt extinguishment								$ 237,000
Maturities of Long-term Debt [Abstract]
Number Of Encumbered Hotels Sold | Hotels								2			2
Repayments of Debt								$ 49,100,000
Mortgages [Member] | Four Point Nine Five Percent Due October 2022 [Member]
Debt Instrument [Line Items]
Number of encumbered hotels (in hotels) | Hotels								4
Interest rate								4.95%
Long-term Debt								$ 122,237,000	124,278,000
Maturities of Long-term Debt [Abstract]
Long-term debt								$ 122,237,000	124,278,000
Mortgages [Member] | Four Point Nine Four Percent Due October 2022 [Member]
Debt Instrument [Line Items]
Number of encumbered hotels (in hotels) | Hotels								1
Interest rate								4.94%
Long-term Debt								$ 30,717,000	31,228,000
Maturities of Long-term Debt [Abstract]
Long-term debt								$ 30,717,000	31,228,000
Senior Notes [Member] | Ten Point Zero Zero Percent Due October 2014 [Member]
Debt Instrument [Line Items]
Interest rate		10.00%
Repayments of Secured Debt		$ 234,000,000
Number of Real Estate Properties | Hotels		11
Debt extinguishment		$ 3,800,000
Senior Notes [Member] | Six Point Seven Five Percent Due June 2019 [Member]
Debt Instrument [Line Items]
Number of encumbered hotels (in hotels) | Hotels								6
Interest rate								6.75%
Repayments of Secured Debt								$ 525,000,000
Debt extinguishment								$ 28,400,000
Senior Notes [Member] | Five Point Six Two Five Percent Due March 2023 [Member]
Debt Instrument [Line Items]
Number of encumbered hotels (in hotels) | Hotels								9
Interest rate								5.625%
Long-term Debt								$ 525,000,000	525,000,000
Maturities of Long-term Debt [Abstract]
Long-term debt								525,000,000	525,000,000
Secured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt								953,000,000
Repayments of Secured Debt	$ 9,600,000			$ 19,200,000	$ 15,600,000	$ 17,100,000	$ 10,900,000	13,000,000
Debt extinguishment	$ 914,000					$ 251,000	$ 251,000
Number of loans (in loans)					2
Maturities of Long-term Debt [Abstract]
Long-term debt								$ 953,000,000
Construction Loans [Member]
Debt Instrument [Line Items]
Term of debt extension								1 year
Construction Loans [Member] | Libor plus Three Point Zero Zero Percent Due November 2018 [Member]
Debt Instrument [Line Items]
Number of encumbered hotels (in hotels) | Hotels								1
Debt Instrument, Description of Variable Rate Basis								LIBOR
Debt Instrument, Basis Spread on Variable Rate								3.00%
Long-term Debt								$ 85,000,000	64,861,000
Maturities of Long-term Debt [Abstract]
Long-term debt								$ 85,000,000	$ 64,861,000
Cash collateralized tranche [Member] | Libor Plus One Point Two Five Percent Due May 2016 [Member]
Debt Instrument [Line Items]
Debt Instrument, Description of Variable Rate Basis									LIBOR
Debt Instrument, Basis Spread on Variable Rate									1.25%
Long-term Debt									$ 6,300,000
Maturities of Long-term Debt [Abstract]
Long-term debt									6,300,000
Retired Debt [Member]
Debt Instrument [Line Items]
Long-term Debt									840,500,000
Maturities of Long-term Debt [Abstract]
Long-term debt									$ 840,500,000