CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 48,924	$ (3,173)	$ 74,295
Other comprehensive income (loss)
Interest rate swaps	[1]	17,960	(23,070)	(21,184)
Capitalized swap interest (expense) income	[2]	0	0	(73)
Pension adjustment		452	(84)	11
Deconsolidation of 110 North Wacker	[3]	0	12,934	0
Share of investee's other comprehensive income	[4]	5,721	1,002	0
Other comprehensive income (loss)		24,133	(9,218)	(21,246)
Comprehensive income (loss)		73,057	(12,391)	53,049
Comprehensive (income) loss attributable to noncontrolling interests		7,176	(22,981)	(339)
Comprehensive income (loss) attributable to common stockholders		$ 80,233	$ (35,372)	$ 52,710

[1] Amounts are shown net of deferred tax expense of $5.1 million for the year ended December 31, 2021, deferred tax benefit of $5.3 million for the year ended December 31, 2020, and deferred tax benefit of $6.2 million for the year ended December 31, 2019.

[2] The deferred tax impact was not meaningful for the years ended December 31, 2021, 2020 and 2019.

[3] The amount for 2020 represents the derecognition of Other comprehensive income (loss) related to interest rate collars on the 110 North Wacker debt, shown net of deferred tax expense of $1.0 million.

[4] Amounts are shown net of deferred tax expense of $1.6 million for the year ended December 31, 2021, and $0.3 million for the year ended December 31, 2020.