SUBSEQUENT EVENTS (Details) (USD $)	9 Months Ended		1 Months Ended	9 Months Ended	1 Months Ended		9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	0 Months Ended	9 Months Ended			12 Months Ended	0 Months Ended						0 Months Ended									0 Months Ended
	Sep. 30, 2013 item	Sep. 30, 2012	Oct. 31, 2013 2013 acquisitions	Sep. 30, 2013 2013 acquisitions	May 31, 2013 Senior secured revolving credit facility	Sep. 30, 2013 Senior secured revolving credit facility	Sep. 30, 2013 Series A Cumulative Redeemable Preferred Stock	Dec. 31, 2012 Series A Cumulative Redeemable Preferred Stock	Sep. 30, 2013 Series B Cumulative Redeemable Preferred Stock	Dec. 31, 2012 Series B Cumulative Redeemable Preferred Stock	Mar. 20, 2013 Series C Cumulative Redeemable Preferred Stock	Sep. 30, 2013 Series C Cumulative Redeemable Preferred Stock	Sep. 30, 2013 Common stock	Sep. 30, 2012 Common stock	Oct. 02, 2013 Subsequent Event 2013 acquisitions Ventura (Camarillo), CA Hampton Inn & Suites	Oct. 08, 2013 Subsequent Event 2013 acquisitions San Diego (Poway), CA Hampton Inn & Suites	Oct. 31, 2013 Subsequent Event Term loan with General Electric Capital Corp	Oct. 31, 2013 Subsequent Event Term loan with General Electric Capital Corp Maximum	Oct. 10, 2013 Subsequent Event Senior unsecured credit facility	Oct. 10, 2013 Subsequent Event Senior unsecured credit facility Minimum item	Oct. 10, 2013 Subsequent Event $225 Million Revolver	Oct. 10, 2013 Subsequent Event $225 Million Revolver 1, 2, 3, or 6-month LIBOR	Oct. 10, 2013 Subsequent Event $225 Million Revolver 1, 2, 3, or 6-month LIBOR Minimum	Oct. 10, 2013 Subsequent Event $225 Million Revolver 1, 2, 3, or 6-month LIBOR Maximum	Oct. 10, 2013 Subsequent Event $225 Million Revolver Base rate	Oct. 10, 2013 Subsequent Event $225 Million Revolver Base rate Minimum	Oct. 10, 2013 Subsequent Event $225 Million Revolver Base rate Maximum	Oct. 10, 2013 Subsequent Event $225 Million Revolver Federal funds rate	Oct. 10, 2013 Subsequent Event $225 Million Revolver 1-month LIBOR	Oct. 10, 2013 Subsequent Event $75 Million Term Loan	Oct. 31, 2013 Subsequent Event Series A Cumulative Redeemable Preferred Stock	Oct. 31, 2013 Subsequent Event Series B Cumulative Redeemable Preferred Stock	Oct. 31, 2013 Subsequent Event Series C Cumulative Redeemable Preferred Stock	Oct. 31, 2013 Subsequent Event Common stock	Oct. 02, 2013 Subsequent Event Common stock
Subsequent events
Shares of common stock issued to redeem common units													2,466,404	4,015,192																					1,770,532
Cash dividends declared, common stock (in dollars per share)																																		$ 0.1125
Cash dividends declared, preferred stock (in dollars per share)																															$ 0.578125	$ 0.4921875	$ 0.4453125
Preferred stock, dividend rate (as a percent)							9.25%	9.25%	7.875%	7.875%	7.125%	7.125%																			9.25%	7.875%	7.125%
Proceeds from issuance of debt	$ 375,745,000	$ 142,585,000																	$ 300,000,000
Maximum borrowing capacity						150,000,000															225,000,000
Maximum borrowing capacity																														75,000,000
Additional Borrowings					36,700,000														100,000,000
Number of hotel properties remain unencumbered	92																			20
Variable rate basis																						1, 2, 3, or 6-month LIBOR			base rate			federal funds	1-month LIBOR
Interest rate margin on variable rate basis (as a percent)																							1.75%	2.50%		0.75%	1.50%	0.50%	1.00%
Unused fees payable, if unused portion of the credit facility is equal to or greater than 50% (as a percent)																			0.30%
Unused fees payable, if unused portion of the credit facility is less that 50% (as a percent)																			0.20%
Threshold for determining unused fees payable (as a percent)																			0.50%
Interest rate (as a percent)																	4.10%
Debt paid off	321,636,000	80,542,000															10,300,000
Prepayment penalties																		100,000
Purchase Price			$ 30,900,000	$ 414,175,000											$ 15,700,000	$ 15,200,000