|
Income per Common Unit of the Operating Partnership, Diluted (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
|
3 Months Ended |
|
Mar. 31, 2015
|
Mar. 31, 2014
|
| Net Income (Loss) Available to Common Stockholders, Basic [Abstract] |
|
|
| Income from continuing operations net of noncontrolling interest |
$ 30,951 |
$ 25,179 |
| Discontinued operations |
0 |
47,848 |
| Net income available to common shareholders |
30,951 |
71,900 |
| Weighted Average Number of Shares Outstanding, Diluted [Abstract] |
|
|
| Weighted Average Number of Shares Outstanding, Basic |
148,315 |
146,425 |
| Dilutive units for long-term compensation plans |
716 |
670 |
| Weighted Average Number of Shares Outstanding, Diluted |
149,031 |
147,095 |
| Liberty Property Limited Partnership [Member] |
|
|
| Net Income (Loss) Available to Common Stockholders, Basic [Abstract] |
|
|
| Income from continuing operations net of noncontrolling interest |
31,804 |
25,905 |
| Less: Preferred unit distributions |
(118) |
(118) |
| Income from Continuing Operations available to Common Unitholders |
31,686 |
25,787 |
| Discontinued operations |
0 |
47,848 |
| Net income available to common shareholders |
$ 31,686 |
$ 73,635 |
| Weighted Average Number of Shares Outstanding, Diluted [Abstract] |
|
|
| Weighted Average Number of Shares Outstanding, Basic |
151,856 |
149,981 |
| Dilutive units for long-term compensation plans |
716 |
670 |
| Weighted Average Number of Shares Outstanding, Diluted |
152,572 |
150,651 |
| Liberty Property Limited Partnership [Member] | Common Units [Member] |
|
|
| Earnings Per Share, Basic [Abstract] |
|
|
| Income from Continuing Operations, Per Basic Share |
$ 0.21 |
$ 0.17 |
| Income from Discontinued Operations, Per Basic Share |
$ 0.00 |
$ 0.32 |
| Income per common share - basic |
$ 0.21 |
$ 0.49 |
| Earnings Per Share, Diluted [Abstract] |
|
|
| Income from Continuing Operations, Per Diluted Share |
$ 0.21 |
$ 0.17 |
| Income from Discontinued Operations, Per Diluted Share |
$ 0.00 |
$ 0.32 |
| Income per common share - diluted |
$ 0.21 |
$ 0.49 |