Acquisition of Hotel and Other Properties (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended	3 Months Ended								12 Months Ended			0 Months Ended
	Sep. 11, 2014	Dec. 31, 2014 room	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014 room	Dec. 31, 2013	Dec. 31, 2012	Mar. 12, 2014 room	Mar. 19, 2013 room	May 22, 2014	Jun. 19, 2014 room	Jul. 15, 2014	Jun. 17, 2013 room	Jun. 21, 2013 room	Aug. 06, 2013 room	Oct. 08, 2013	Jul. 14, 2014 room
Significant Acquisitions and Disposals [Line Items]
Ownership interest in assets (as a percent)										100.00%
Rooms		22,900								22,900
Purchase Price	$ 78,250
Total revenues and net income (loss) from hotels acquired
Total revenue		280,111	297,666	295,047	236,373	242,571	252,116	260,823	214,870	1,109,197	970,380	849,685
Net income (loss)										136,480	114,179	41,319
Unaudited condensed pro forma financial information
Total revenue										1,151,088	1,112,475
Net income attributable to common shareholders										145,286	141,102
Net income per share attributable to common shareholders - basic (in dollars per share)										$ 1.14	$ 1.20
Net income per share attributable to common shareholders - diluted (in dollars per share)										$ 1.13	$ 1.19
Weighted average number of shares outstanding - basic (in shares)										127,360,669	117,950,066
Weighted average number of shares outstanding - diluted (in shares)										128,293,843	118,738,626
Acquisitions 2013 [Member]
Total revenues and net income (loss) from hotels acquired
Total revenue											28,330
Net income (loss)											7,050
Hyatt House Charlotte Center City [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms													163
Purchase Price													32,496
Acquisitions 2014 [Member]
Significant Acquisitions and Disposals [Line Items]
Business acquisition purchase price allocation land and improvements		164,396				30,989				164,396	30,989
Allocation of purchase price for the hotel properties acquired and liabilities assumed
Business acquisition purchase price allocation building and improvements		409,540				188,180				409,540	188,180
Furniture, fixtures and equipment		57,575				8,755				57,575	8,755
Business acquisition purchase price allocation total		631,950				212,732				631,950	212,732
Total revenues and net income (loss) from hotels acquired
Total revenue										106,306
Net income (loss)										18,773
Acquisitions 2014 [Member] | Lease intangibles
Allocation of purchase price for the hotel properties acquired and liabilities assumed
Business acquisition purchase price allocation intangibles		439				650				439	650
Acquisitions 2014 [Member] | Management agreement intangibles
Allocation of purchase price for the hotel properties acquired and liabilities assumed
Business acquisition purchase price allocation intangibles		0				(3,695)				0	(3,695)
Total		631,950				217,001				631,950	217,001
Bargain purchase gain										0	(4,269)
Acquisitions 2014 [Member] | Above Market Leases
Allocation of purchase price for the hotel properties acquired and liabilities assumed
Business acquisition purchase price allocation intangibles		0				(7,878)				0	(7,878)
Courtyard Houston Downtown Convention Center
Significant Acquisitions and Disposals [Line Items]
Rooms														191
Purchase Price														34,308
Hyatt House Cypress Anaheim [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms													142
Purchase Price													14,753
Hyatt House Emeryville SF Bay Area [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms													234
Purchase Price													39,274
Hyatt House San Diego Sorrento Mesa [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms													193
Purchase Price													35,985
Hyatt House San Jose Silicon Valley [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms													164
Purchase Price													44,159
Hyatt House San Ramon [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms													142
Purchase Price													20,833
Hyatt House Santa Claraa [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms													150
Purchase Price													40,570
Hyatt Market Street The Woodlands [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms													70
Purchase Price													25,817
Hyatt Place Fremont Silicon Valley [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms													151
Purchase Price													23,525
Hyatt Place Madison Downtown [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms													151
Purchase Price													35,088
Courtyard Portland City Center [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms															256
Purchase Price															67,000
Embassy Suites Irvine Orange County [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms															293
Purchase Price															53,000
Hilton Cabana Miami Beach [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms																231
Purchase Price																71,700
Hyatt Atlanta Midtown [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms																						194
Purchase Price																	49,500
DoubleTree Grand Key Resort [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms	215
Residence Inn Houston Downtown Convention Center
Significant Acquisitions and Disposals [Line Items]
Rooms														171
Purchase Price														29,421
SpringHill Suites Houston Downtown Convention Center
Significant Acquisitions and Disposals [Line Items]
Rooms														82
Purchase Price														15,547
Courtyard Waikiki Beach
Significant Acquisitions and Disposals [Line Items]
Rooms																		399
Purchase Price																		75,250
Vantaggio Suites Cosmo [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms																			150
Purchase Price																			29,475
Residence Inn Atlanta Midtown Historic
Significant Acquisitions and Disposals [Line Items]
Rooms																				78
Purchase Price																				4,731
SpringHill Suites Portland Hillsboro [Member]
Significant Acquisitions and Disposals [Line Items]
Rooms																					106
Purchase Price																					$ 24,000