| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | |
|---|---|---|---|---|---|---|
Revenues [Abstract] | ||||||
Operating Lease, Lease Income | ||||||
586,414 | 493,231 | 483,944 | 460,653 | 447,784 | 400,825 | |
Tenant expense reimbursement | ||||||
0 | 72,372 | 73,679 | 73,459 | 79,516 | 67,651 | |
Observatory Revenue | ||||||
128,769 | 131,227 | 127,118 | 124,814 | 112,172 | 111,541 | |
Lease Termination Fees Revenue | ||||||
4,352 | 20,847 | 13,551 | 7,676 | - | - | |
Property Management Fee Revenue | ||||||
1,254 | 1,440 | 1,400 | 1,766 | 2,133 | 2,376 | |
Other Operating Income | ||||||
10,554 | 12,394 | 9,834 | 8,985 | 14,048 | 14,285 | |
Construction revenue | ||||||
- | - | - | - | 1,981 | 38,648 | |
Total revenues | ||||||
731,343 | 731,511 | 709,526 | 677,353 | 657,634 | 635,326 | |
Operating Expenses [Abstract] | ||||||
Operating Costs and Expenses | ||||||
174,977 | 167,379 | 163,531 | 153,850 | 158,638 | 148,676 | |
Ground Rent Expense | ||||||
9,326 | 9,326 | 9,326 | 9,326 | 9,326 | 5,339 | |
Selling, General and Administrative Expense | ||||||
61,063 | 52,674 | 50,315 | 49,078 | 38,073 | 39,037 | |
Observatory Expense | ||||||
33,767 | 32,767 | 30,275 | 29,833 | 32,174 | 31,413 | |
Construction expenses | ||||||
- | - | - | - | 3,222 | 38,596 | |
Real Estate Tax Expense | ||||||
115,916 | 110,000 | 102,466 | 96,061 | 93,165 | 82,131 | |
Acquisition expenses | ||||||
- | - | - | 98 | 193 | 3,382 | |
Depreciation, Depletion and Amortization, Nonproduction | ||||||
181,588 | 168,508 | 160,710 | 155,211 | 171,474 | 145,431 | |
Total operating expenses | ||||||
576,637 | 540,654 | 516,623 | 493,457 | 506,265 | 494,005 | |
Total operating income | ||||||
154,706 | 190,857 | 192,903 | 183,896 | 151,369 | 141,321 | |
Other Nonoperating Income (Expense) [Abstract] | ||||||
Investment Income, Net | ||||||
11,259 | 10,661 | 2,942 | 647 | - | - | |
Interest Expense | ||||||
79,246 | 79,623 | 68,473 | 70,595 | 65,743 | 66,456 | |
Loss on early extinguishment of debt | ||||||
0 | 0 | -2,157 | -552 | -1,749 | - | |
Loss from derivative financial instruments | ||||||
0 | 0 | -289 | 0 | 0 | - | |
Income before income taxes | ||||||
86,719 | 121,895 | 124,926 | 113,396 | 83,877 | 74,865 | |
Income Tax Expense (Benefit) | ||||||
2,429 | 4,642 | 6,673 | 6,146 | 3,949 | 4,655 | |
Net income | ||||||
84,290 | 117,253 | 118,253 | 107,250 | 79,928 | 70,210 | |
Preferred Stock Dividends and Other Adjustments | ||||||
1,743 | 936 | 936 | 936 | 936 | 476 | |
Net Income (Loss) Attributable to Noncontrolling Interest | ||||||
33,102 | 50,714 | 54,670 | 54,858 | 45,262 | 43,067 | |
Net Income (Loss) Available to Common Stockholders, Basic | ||||||
49,445 | 65,603 | 62,647 | 51,456 | 33,730 | 26,667 | |
Total weighted average shares: | ||||||
Weighted Average Number of Shares Outstanding, Basic | ||||||
178,340 | 167,571 | 158,380 | 133,881 | 114,245 | 97,941 | |
Weighted Average Number of Shares Outstanding, Diluted | ||||||
297,798 | 297,259 | 298,049 | 277,568 | 266,621 | 254,506 | |
Earnings per share attributable to common stockholders: | ||||||
Basic (in USD per share) | ||||||
0.28 | 0.39 | 0.40 | 0.38 | 0.30 | 0.27 | |
Diluted (in USD per share) | ||||||
0.28 | 0.39 | 0.39 | 0.38 | 0.29 | 0.27 | |