Earnings per Share and Unit (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share Basic [Line Items]
Income (loss) per common share - basic		$ 0.56	$ 0.11	$ 1.04	$ (0.04)
Income (loss) per common share - diluted		$ 0.56	$ 0.11	$ 1.04	$ (0.04)
Weighted Average Limited Partnership Units Outstanding, Basic		765,046	765,046	763,907	765,046
Continuing Operations | Parent Company [Member]
Earnings Per Share Basic [Line Items]
Income (loss) attributable to common stockholders - basic		$ 95,490	$ 19,046	$ 176,146	$ (6,286)
Income (loss) attributable to common stockholders - diluted		$ 95,490	$ 19,046	$ 176,146	$ (6,286)
Weighted average common shares/units outstanding for basic EPS/EPU		169,854,000	169,643,000	169,812,000	168,781,000
Weighted average common shares/units outstanding for diluted EPS/EPU	[1]	170,172,000	169,971,000	170,065,000	168,781,000
Income (loss) per common share - basic		$ 0.56	$ 0.11	$ 1.04	$ (0.04)
Income (loss) per common share - diluted		$ 0.56	$ 0.11	$ 1.04	$ (0.04)
Continuing Operations | Partnership Interest [Member]
Earnings Per Share Basic [Line Items]
Income (loss) attributable to common stockholders - basic		$ 95,922	$ 19,133	$ 176,942	$ (6,314)
Income (loss) attributable to common stockholders - diluted		$ 95,922	$ 19,133	$ 176,942	$ (6,314)
Weighted average common shares/units outstanding for basic EPS/EPU		170,617,000	170,409,000	170,576,000	169,546,000
Weighted average common shares/units outstanding for diluted EPS/EPU		170,935,000	170,736,000	170,828,000	169,546,000
Income (loss) per common share - basic		$ 0.56	$ 0.11	$ 1.04	$ (0.04)
Income (loss) per common share - diluted		$ 0.56	$ 0.11	$ 1.04	$ (0.04)

[1] The six months ended June 30, 2020, excludes the impact of unvested restricted stock because it would be anti-dilutive.