Subsequent Events - Additional Information (Detail) (USD $)	12 Months Ended			1 Months Ended				1 Months Ended			1 Months Ended		1 Months Ended
	Dec. 31, 2012	Oct. 03, 2012 Property	Dec. 31, 2011	Jan. 31, 2013 Subsequent Event	Jan. 03, 2013 Subsequent Event	Jan. 22, 2013 Subsequent Event Property	Jan. 22, 2013 Subsequent Event New Orleans Marriott Hotel	Jan. 14, 2013 Subsequent Event First National Bank of Omaha Loan Hotel	Jan. 14, 2013 Subsequent Event First National Bank of Omaha Term Loan One	Jan. 14, 2013 Subsequent Event First National Bank of Omaha Term Loan Two	Jan. 25, 2013 Subsequent Event Secured Term Loan With Key Bank N Hotel	Jan. 22, 2013 Subsequent Event Hyatt Place Hotel	Feb. 11, 2013 Subsequent Event Holiday Inn Express	Jan. 15, 2013 Subsequent Event AmericInn	Feb. 15, 2013 Subsequent Event Hampton Inn	Jan. 31, 2013 Subsequent Event Series A Cumulative Redeemable Preferred Stock	Jan. 31, 2013 Subsequent Event Series B Cumulative Convertible Redeemable Preferred Stock	Jan. 14, 2013 Subsequent Event Public Offering
Subsequent Event [Line Items]
Common units redeemed	4,873,625				1,974,669
Number of shares tendered for redemption				249,846
Common shares redemption date				Apr. 01, 2013
Share issued through public offering																		17,250,000
Net proceed from share issued through public offering																		$ 148,100,000
Cash dividends declared per share of common stock				$ 0.1125
Cash dividends declared per share of cumulative preferred stock																$ 0.578125	$ 0.432
Preferred stock dividend percentage																9.25%	7.875%
Dividend payable date				Feb. 28, 2013
number of loans paid off								2
Number of hotel properties								3			4
Debt obligation	312,613,000		217,104,000					22,800,000			29,400,000
Maturity date									2013-07	2014-02
Fixed interest rate											4.46%
Maturity date											Feb. 01, 2023
Amortization period											30 years
Number of hotel acquired		10				5	2					3
Purchase price of acquired entity	265,418,000		50,050,000			135,000,000						36,100,000	60,500,000
Debt assumed	47,162,000												23,500,000
Joint venture capital													34,600,000
Ownership interest													80.00%
Renovation reserves													2,800,000
Sale of discontinued operation														$ 2,600,000	$ 5,500,000