COPT Defense Properties Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Share-Based Compensation and Other Compensation Matters (Details 2)

Share-Based Compensation and Other Compensation Matters (Details 2) (USD $)

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Stock Options

Exercised (in shares)

Aggregate Intrinsic Value

Increase (decrease) in tax benefit from share-based compensation

Stock Options

Outstanding at the beginning of the period (in shares)

Forfeited/Expired (in shares)

Exercised (in shares)

Outstanding at the end of the period (in shares)

Exercisable at the end of the period (in shares)

^[1]

^[2]

^[3]

Exercise price range, options outstanding, low end of range (in dollars per share)

Exercise price range, options outstanding, high end of range (in dollars per share)

Weighted Average Exercise Price per Share

Outstanding at the beginning of the period (in dollars per share)

Forfeited/Expired (in dollars per share)

Exercised (in dollars per share)

Outstanding at the end of the period (in dollars per share)

Exercisable at the end of the period (in dollars per share)

^[1]

^[2]

^[3]

Weighted Average Remaining Contractual Term

Weighted average remaining contractual term

2 years

2 years

3 years

4 years

Aggregate Intrinsic Value

Balance outstanding

Aggregate intrinsic value of options exercised

Options | Range of Exercise Price One | Vested

Stock Options

Exercisable at the end of the period (in shares)

Exercise price range, options outstanding, low end of range (in dollars per share)

Exercise price range, options outstanding, high end of range (in dollars per share)

Options | Range of Exercise Price Two | Vested

Stock Options

Exercisable at the end of the period (in shares)

Exercise price range, options outstanding, low end of range (in dollars per share)

Exercise price range, options outstanding, high end of range (in dollars per share)

Options | Range of Exercise Price Three | Vested

Stock Options

Exercisable at the end of the period (in shares)

Exercise price range, options outstanding, low end of range (in dollars per share)

Exercise price range, options outstanding, high end of range (in dollars per share)

Options | Range of Exercise Price Four | Vested

Stock Options

Exercisable at the end of the period (in shares)

Exercise price range, options outstanding, low end of range (in dollars per share)

Exercise price range, options outstanding, high end of range (in dollars per share)

Performance share units

Aggregate Intrinsic Value

Estimated pre-vesting forfeitures (as a percent)

Unrecognized compensation cost

Expected weighted average period during which unrecognized compensation cost will be recognized

2 years

Restricted shares

Aggregate Intrinsic Value

Unrecognized compensation cost

Expected weighted average period during which unrecognized compensation cost will be recognized

2 years

Minimum | Options

Stock Options

Exercise price range, options forfeited (in dollars per share)

Exercise price range, options exercised (in dollars per share)

Minimum | Restricted shares

Aggregate Intrinsic Value

Estimated pre-vesting forfeitures (as a percent)

Maximum | Options

Stock Options

Exercise price range, options forfeited (in dollars per share)

Exercise price range, options exercised (in dollars per share)

Maximum | Restricted shares

Aggregate Intrinsic Value

Estimated pre-vesting forfeitures (as a percent)

[1]	105,672 of these options had an exercise price ranging from $25.52 to $30.04; 142,862 had an exercise price ranging from$30.05 to $41.28; 158,902 had an exercise price ranging from $41.29 to $42.74; and 152,300 had an exercise price ranging from $42.75 to $56.00.
[2]	171,288 of these options had an exercise price ranging from $19.63 to $30.04; 145,187 had an exercise price ranging from$30.05 to $41.28; 160,402 had an exercise price ranging from $41.29 to $42.74; and 164,050 had an exercise price ranging from $42.75 to $56.00.
[3]	9,500 of these options had an exercise price ranging from $13.60 to $16.73; 204,736 had an exercise price ranging from $16.74 to $30.04; 180,962 had an exercise price ranging from $30.05 to $41.28; and 403,012 had an exercise price ranging from $41.29 to $57.00.