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Mack-Cali Realty Corporation Stockholders' Equity (Schedule Of Stock Option Plans) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
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12 Months Ended |
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Mack-Cali Realty Corporation Stockholders' Equity [Abstract] |
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|
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| Shares Under Options - Outstanding, beginning balance |
295,676 |
352,184 |
395,541 |
| Shares Under Options - Exercised |
(107,806) |
(55,508) |
(18,917) |
| Shares Under Options - Lapsed or Cancelled |
(4,000) |
(1,000) |
(24,440) |
| Shares Under Options - Outstanding, ending balance |
183,870 |
295,676 |
352,184 |
| Weighted Average Exercise Price - Outstanding, beginning balance |
$ 29.05 |
$ 28.74 |
$ 28.77 |
| Weighted Average Exercise Price - Exercised |
$ 28.27 |
$ 27.10 |
$ 26.66 |
| Weighted Average Exercise Price - Lapsed or Cancelled |
$ 28.80 |
$ 26.75 |
$ 30.89 |
| Weighted Average Exercise Price - Outstanding, ending balance |
$ 29.51 |
$ 29.05 |
$ 28.74 |
| Aggregate Intrinsic Value, Outstanding, beginning balance |
$ 1,186 |
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| Aggregate Intrinsic Value, Outstanding, ending balance |
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1,186 |
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| Shares Under Options - Options exercisable |
183,870 |
295,676 |
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| Shares Under Options - Available for grant |
2,343,337 |
2,425,073 |
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| Option exercisable, Aggregate Intrinsic Value |
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$ 1,186 |
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| Outstanding stock option price range, lower range |
$ 28.47 |
$ 26.31 |
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| Outstanding stock option price range, upper range |
$ 45.47 |
$ 45.47 |
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