Supplemental Information to Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Dividends Payable [Line Items]
Interest Paid	$ 11,162	$ 5,876
Interest Paid, Capitalized	206	0
Income Taxes Paid	1,287	889
Distributions payable on shares/units	15,202
Issuance of common shares for board of trustees compensation	207	199
Mortgage loan assumed in connection with acquisition	66,732	0
Above market rate contracts assumed in connection with acquisition	4,751	0
Deposit Applied To Purchase Price Of Acquisition	4,000	0
Accrued additions and improvements to hotel properties	1,081	1,042
Common Shares [Member]
Dividends Payable [Line Items]
Distributions payable on shares/units	10,017	7,019
Preferred Shares [Member]
Dividends Payable [Line Items]
Distributions payable on shares/units	$ 5,185	$ 3,813