Segments (Summary of Segment Operating Results) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segments reporting
Total revenues	$ 223,316	$ 276,708	$ 419,605	$ 486,934
Depreciation and amortization	(53,221)	(48,976)	(105,230)	(97,569)
Other income (loss), net	(1,607)	714	3,374	493
Equity in earnings (losses) from unconsolidated ventures	(6,186)	(6,092)	(10,988)	11,820
Gain (loss) on sale or disposal of real estate and other assets, net	(16)	4,018	4,714	4,009
Gain (loss) on extinguishment of debt	0	(363)	0	(645)
Income (loss) before income taxes	(34,511)	28,695	(58,416)	31,567
Net income (loss)	(19,141)	21,432	(41,768)	23,603
Net (income) loss attributable to noncontrolling interests	(2)	132	(120)	83
Net income (loss) attributable to common stockholders	(19,143)	21,564	(41,888)	23,686
Operating segments
Segments reporting
Total revenues	223,300	276,694	419,575	486,905
Total operating expenses	(144,536)	(151,230)	(256,461)	(271,677)
Segment operating income (loss)	78,764	125,464	163,114	215,228
Depreciation and amortization	(52,396)	(48,156)	(103,605)	(95,831)
Interest income (expense), net	(6,371)	(5,688)	(16,221)	(11,442)
Other income (loss), net	(1,658)	617	616	313
Equity in earnings (losses) from unconsolidated ventures	(6,186)	(6,092)	(10,988)	11,820
Gain (loss) on sale or disposal of real estate and other assets, net	(16)	4,018	4,714	4,009
Gain (loss) on extinguishment of debt		(363)		(645)
Income (loss) before income taxes	12,137	69,800	37,630	123,452
Corporate
Segments reporting
Corporate income, expenses, and other items	(31,278)	(48,368)	(79,398)	(99,849)
Operating Assets Segment
Segments reporting
Total revenues	121,427	118,562	222,352	218,249
Operating Assets Segment | Operating segments
Segments reporting
Total revenues	121,427	118,562	222,352	218,249
Total operating expenses	(54,452)	(51,349)	(102,051)	(97,964)
Segment operating income (loss)	66,975	67,213	120,301	120,285
Depreciation and amortization	(40,878)	(38,999)	(80,510)	(77,429)
Interest income (expense), net	(30,285)	(21,318)	(59,196)	(41,436)
Other income (loss), net	(40)	(309)	2,242	(478)
Equity in earnings (losses) from unconsolidated ventures	2,042	2,591	3,947	17,766
Gain (loss) on sale or disposal of real estate and other assets, net	(16)	4,018	4,714	4,018
Gain (loss) on extinguishment of debt		(363)		(645)
Income (loss) before income taxes	(2,202)	12,833	(8,502)	22,081
MPC Segment
Segments reporting
Total revenues	63,311	108,110	140,324	188,802
MPC Segment | Operating segments
Segments reporting
Total revenues	63,311	108,110	140,324	188,802
Total operating expenses	(28,078)	(45,136)	(62,429)	(82,032)
Segment operating income (loss)	35,233	62,974	77,895	106,770
Depreciation and amortization	(106)	(92)	(213)	(182)
Interest income (expense), net	17,161	11,783	32,973	22,205
Other income (loss), net	0	23	(103)	23
Equity in earnings (losses) from unconsolidated ventures	2,638	(3,422)	6,746	2,128
Gain (loss) on sale or disposal of real estate and other assets, net	0	0	0	0
Gain (loss) on extinguishment of debt		0		0
Income (loss) before income taxes	54,926	71,266	117,298	130,944
Seaport Segment
Segments reporting
Total revenues	22,804	28,176	34,701	37,552
Seaport Segment | Operating segments
Segments reporting
Total revenues	22,804	28,176	34,701	37,552
Total operating expenses	(26,665)	(29,066)	(45,581)	(47,925)
Segment operating income (loss)	(3,861)	(890)	(10,880)	(10,373)
Depreciation and amortization	(10,469)	(7,720)	(20,996)	(15,543)
Interest income (expense), net	1,311	1,319	2,497	1,272
Other income (loss), net	(1,601)	(43)	(1,600)	307
Equity in earnings (losses) from unconsolidated ventures	(10,896)	(5,239)	(21,716)	(8,950)
Gain (loss) on sale or disposal of real estate and other assets, net	0	0	0	0
Gain (loss) on extinguishment of debt		0		0
Income (loss) before income taxes	(25,516)	(12,573)	(52,695)	(33,287)
Strategic Developments Segment
Segments reporting
Total revenues	15,758	21,846	22,198	42,302
Strategic Developments Segment | Operating segments
Segments reporting
Total revenues	15,758	21,846	22,198	42,302
Total operating expenses	(35,341)	(25,679)	(46,400)	(43,756)
Segment operating income (loss)	(19,583)	(3,833)	(24,202)	(1,454)
Depreciation and amortization	(943)	(1,345)	(1,886)	(2,677)
Interest income (expense), net	5,442	2,528	7,505	6,517
Other income (loss), net	(17)	946	77	461
Equity in earnings (losses) from unconsolidated ventures	30	(22)	35	876
Gain (loss) on sale or disposal of real estate and other assets, net	0	0	0	(9)
Gain (loss) on extinguishment of debt		0		0
Income (loss) before income taxes	$ (15,071)	$ (1,726)	$ (18,471)	$ 3,714