CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income	$ 223,110	$ 166,418	$ 197,185
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	357,342	329,776	315,878
Amortization of deferred financing costs and debt discounts as interest	8,151	5,849	5,491
Straight line rental income	(13,570)	(9,568)	(2,111)
Security deposits replenished	35,759	20,501	5,204
FF&E reserve income and deposits	(73,956)	(67,967)	(54,265)
Loss on early extinguishment of debt	228	0	855
Loss on distribution to common shareholders of The RMR Group Inc. common stock	0	36,773	0
Equity in earnings of an investee	(137)	(21)	(94)
Gain on sale of real estate	0	(11,015)	(130)
Deferred income taxes	9	(69)	143
Other non-cash (income) expense, net	(3,250)	(364)	2,020
Changes in assets and liabilities:
Due from related persons	(1,213)	(2,106)	(609)
Other assets	(190)	246	(569)
Accounts payable and other liabilities	8,752	362	(7,117)
Due to related persons	(8,515)	62,078	(136)
Net cash provided by operating activities	532,520	530,893	461,745
Cash flows from investing activities:
Real estate acquisitions and deposits	(262,955)	(449,882)	(60,000)
Real estate improvements	(187,652)	(180,703)	(224,621)
FF&E reserve escrow fundings	(3,749)	(7,299)	(5,910)
Net proceeds from sale of real estate	0	0	4,288
Eminent domain proceeds	0	0	6,178
Investment in Affiliates Insurance Company	0	0	(825)
Investment in The RMR Group Inc.	0	(15,955)	0
Net cash used in investing activities	(454,356)	(653,839)	(280,890)
Cash flows from financing activities:
Proceeds from issuance of common shares, net	371,956	0	0
Proceeds from issuance of senior unsecured notes, net of discounts	737,612	0	690,071
Repayment of senior unsecured notes	(575,000)	0	(580,000)
Borrowings under unsecured revolving credit facility	764,000	702,000	783,000
Repayments of unsecured revolving credit facility	(1,038,000)	(255,000)	(765,000)
Deferred financing costs	(6,106)	(1,157)	(6,899)
Repurchase of common shares	(613)	(418)	0
Distributions to preferred shareholders	(20,664)	(20,664)	(20,664)
Distributions to common shareholders	(314,135)	(299,967)	(292,029)
Net cash provided by (used in) financing activities	(80,950)	124,794	(191,521)
Increase (decrease) in cash and cash equivalents	(2,786)	1,848	(10,666)
Cash and cash equivalents at beginning of year	13,682	11,834	22,500
Cash and cash equivalents at end of year	10,896	13,682	11,834
Supplemental cash flow information:
Cash paid for interest	146,399	138,892	139,029
Cash paid for income taxes	2,727	2,444	4,116
Non-cash investing activities:
Hotel managers’ deposits in FF&E reserve	74,876	67,381	52,762
Hotel managers’ purchases with FF&E reserve	(69,380)	(57,451)	(55,562)
Investment in The RMR Group Inc. paid in common shares	0	43,285	0
Real estate acquisitions		(45,042)
Sales of real estate		45,042
Non-cash financing activities
Distribution to common shareholders of The RMR Group Inc. common stock	$ 0	$ (29,911)	$ 0