Segment Information (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Information
Number of reportable segments | segment									2
Total revenues	$ 580,906	$ 599,772	$ 610,562	$ 524,908	$ 550,799	$ 603,153	$ 611,951	$ 528,633	$ 2,316,148	$ 2,294,536	$ 2,171,935
Hotel operating expenses									1,410,927	1,387,065	1,274,642
Other operating expenses									8,357	5,290	4,905
Depreciation and amortization									428,448	403,077	386,659
General and administrative									54,639	104,862	125,402
Acquisition and transaction related costs									1,795	0	0
Loss on asset impairment									39,296	0	0
Total expenses									1,943,462	1,900,294	1,791,608
Gain on sale of real estate									159,535	0	9,348
Dividend income									1,752	2,754	2,504
Unrealized losses on equity securities									(40,461)	(16,737)	0
Interest income									2,215	1,528	798
Interest expense									(225,126)	(195,213)	(181,579)
Loss on early extinguishment of debt									(8,451)	(160)	(146)
Income before income taxes and equity in earnings of an investee									262,150	186,414	211,252
Income tax benefit (expense)									(2,793)	(1,195)	3,284
Equity in earnings of an investee									393	515	607
Net income	(14,893)	$ 40,074	$ 8,782	$ 225,787	(108,860)	$ 117,099	$ 97,289	$ 80,206	259,750	185,734	215,143
Total assets	9,033,967				7,177,079				9,033,967	7,177,079	7,150,385
Corporate
Segment Information
Total revenues									0	0	0
Hotel operating expenses									0	0	0
Other operating expenses									0	0	0
Depreciation and amortization									0	0	0
General and administrative									54,639	104,862	125,402
Acquisition and transaction related costs									1,795	0
Loss on asset impairment									0	0
Total expenses									56,434	104,862	125,402
Gain on sale of real estate									0		9,348
Dividend income									1,752	2,754	2,504
Unrealized losses on equity securities									(40,461)	(16,737)
Interest income									1,420	538	397
Interest expense									(225,126)	(195,213)	(181,579)
Loss on early extinguishment of debt									(8,451)	(160)	(146)
Income before income taxes and equity in earnings of an investee									(327,300)	(313,680)	(294,878)
Income tax benefit (expense)									(2,793)	(1,195)	3,284
Equity in earnings of an investee									393	515	607
Net income									(329,700)	(314,360)	(290,987)
Total assets	124,587				192,252				124,587	192,252	196,800
Hotels | Operating segments
Segment Information
Total revenues									2,014,897	1,992,374	1,878,661
Hotel operating expenses									1,410,927	1,387,065	1,274,642
Other operating expenses									0	0	0
Depreciation and amortization									268,088	255,759	242,829
General and administrative									0	0	0
Acquisition and transaction related costs									0	0
Loss on asset impairment									28,371	0
Total expenses									1,707,386	1,642,824	1,517,471
Gain on sale of real estate									0		0
Dividend income									0	0	0
Unrealized losses on equity securities									0	0
Interest income									795	990	401
Interest expense									0	0
Loss on early extinguishment of debt									0	0	0
Income before income taxes and equity in earnings of an investee									308,306	350,540	361,591
Income tax benefit (expense)									0	0	0
Equity in earnings of an investee									0	0	0
Net income									308,306	350,540	361,591
Total assets	4,866,549				4,586,709				4,866,549	4,586,709	4,477,512
Net Lease | Operating segments
Segment Information
Total revenues									301,251	302,162	293,274
Hotel operating expenses									0	0	0
Other operating expenses									8,357	5,290	4,905
Depreciation and amortization									160,360	147,318	143,830
General and administrative									0		0
Acquisition and transaction related costs										0
Loss on asset impairment									10,925	0
Total expenses									179,642	152,608	148,735
Gain on sale of real estate									159,535		0
Dividend income									0	0	0
Unrealized losses on equity securities									0	0
Interest income									0	0	0
Interest expense									0	0	0
Loss on early extinguishment of debt									0	0	0
Income before income taxes and equity in earnings of an investee									281,144	149,554	144,539
Income tax benefit (expense)									0	0	0
Equity in earnings of an investee									0	0	0
Net income									281,144	149,554	144,539
Total assets	$ 4,042,831				$ 2,398,118				4,042,831	2,398,118	2,476,073
Hotel operating revenues
Segment Information
Total revenues									1,989,173	1,958,598	1,840,829
Hotel operating revenues | Corporate
Segment Information
Total revenues									0	0	0
Hotel operating revenues | Hotels | Operating segments
Segment Information
Total revenues									1,989,173	1,958,598	1,840,829
Hotel operating revenues | Net Lease | Operating segments
Segment Information
Total revenues									0	0	0
Rental income
Segment Information
Total revenues									322,236	330,806	326,436
Rental income | Corporate
Segment Information
Total revenues									0	0	0
Rental income | Hotels | Operating segments
Segment Information
Total revenues									20,985	28,644	33,162
Rental income | Net Lease | Operating segments
Segment Information
Total revenues									301,251	302,162	293,274
FF&E reserve income
Segment Information
Total revenues									4,739	5,132	4,670
FF&E reserve income | Corporate
Segment Information
Total revenues									0	0	0
FF&E reserve income | Hotels | Operating segments
Segment Information
Total revenues									4,739	5,132	4,670
FF&E reserve income | Net Lease | Operating segments
Segment Information
Total revenues									$ 0	$ 0	$ 0