Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings (Deficit) and Distributions	Total Stockholders’ Equity	Non-controlling Interests, Operating Partnership	Non-controlling Interests, Joint Venture
Beginning balance at Dec. 31, 2018	$ 1,192,144	$ 94	$ 1,048	$ 1,185,310	$ (1,441)	$ 4,838	$ 1,189,849	$ 2,295	$ 0
Beginning balance (in shares) at Dec. 31, 2018		9,400,000	104,783,179
Changes in equity
Common stock redemption of common units				53			53	(53)
Common stock redemption of common units (in shares)	6,076		6,076
Dividends	$ (44,587)					(44,493)	(44,493)	(94)
Equity-based compensation	3,316		$ 4	3,304			3,308	8
Equity-based compensation (in shares)			411,711
Shares acquired for employee withholding requirements	$ (839)		$ (1)	(838)			(839)
Shares acquired for employee withholding requirements (in shares)	(74,340)		(74,340)
Other	$ (114)			(114)			(114)
Other comprehensive income (loss)	(14,832)				(14,795)		(14,795)	(37)
Net income (loss)	61,969					61,834	61,834	135
Ending balance at Jun. 30, 2019	1,197,057	$ 94	$ 1,051	1,187,715	(16,236)	22,179	1,194,803	2,254	0
Ending balance (in shares) at Jun. 30, 2019		9,400,000	105,126,626
Beginning balance at Mar. 31, 2019	1,177,969	$ 94	$ 1,051	1,185,790	(6,985)	(4,241)	1,175,709	2,260	0
Beginning balance (in shares) at Mar. 31, 2019		9,400,000	105,080,113
Changes in equity
Common stock redemption of common units				53			53	(53)
Common stock redemption of common units (in shares)			6,076
Dividends	(22,584)					(22,537)	(22,537)	(47)
Equity-based compensation	1,964		$ 0	1,959			1,959	5
Equity-based compensation (in shares)			40,885
Shares acquired for employee withholding requirements	(5)		$ 0	(5)			(5)
Shares acquired for employee withholding requirements (in shares)			(448)
Other	(82)			(82)			(82)
Other comprehensive income (loss)	(9,274)				(9,251)		(9,251)	(23)
Net income (loss)	49,069					48,957	48,957	112
Ending balance at Jun. 30, 2019	1,197,057	$ 94	$ 1,051	1,187,715	(16,236)	22,179	1,194,803	2,254	0
Ending balance (in shares) at Jun. 30, 2019		9,400,000	105,126,626
Beginning balance at Dec. 31, 2019	1,243,390	$ 94	$ 1,052	1,190,949	(16,034)	(2,283)	1,173,778	1,809	67,803
Beginning balance (in shares) at Dec. 31, 2019		9,400,000	105,169,515
Changes in equity
Contribution by non-controlling interests in joint venture	$ 577								577
Common stock redemption of common units				298	(22)		276	(276)
Common stock redemption of common units (in shares)	33,579		33,579
Dividends	$ (26,544)					(25,972)	(25,972)	(37)	(535)
Equity-based compensation	3,441		$ 6	3,429			3,435	6
Equity-based compensation (in shares)			559,084
Shares acquired for employee withholding requirements	$ (469)		$ (1)	(468)			(469)
Shares acquired for employee withholding requirements (in shares)	(65,345)		(65,345)
Other	$ (30)			(30)			(30)
Other comprehensive income (loss)	(20,067)				(20,030)		(20,030)	(37)
Net income (loss)	(68,762)					(65,739)	(65,739)	(133)	(2,890)
Ending balance at Jun. 30, 2020	1,131,536	$ 94	$ 1,057	1,194,178	(36,086)	(93,994)	1,065,249	1,332	64,955
Ending balance (in shares) at Jun. 30, 2020		9,400,000	105,696,833
Beginning balance at Mar. 31, 2020	1,186,895	$ 94	$ 1,056	1,191,964	(35,044)	(39,868)	1,118,202	1,658	67,035
Beginning balance (in shares) at Mar. 31, 2020		9,400,000	105,574,400
Changes in equity
Common stock redemption of common units				252	(19)		233	(233)
Common stock redemption of common units (in shares)			28,623
Dividends	(3,754)					(3,709)	(3,709)		(45)
Equity-based compensation	1,966		$ 1	1,962			1,963	3
Equity-based compensation (in shares)			93,810
Other comprehensive income (loss)	(1,023)				(1,023)		(1,023)
Net income (loss)	(52,548)					(50,417)	(50,417)	(96)	(2,035)
Ending balance at Jun. 30, 2020	$ 1,131,536	$ 94	$ 1,057	$ 1,194,178	$ (36,086)	$ (93,994)	$ 1,065,249	$ 1,332	$ 64,955
Ending balance (in shares) at Jun. 30, 2020		9,400,000	105,696,833