Commitments And Contingencies (Changes In Executive Officers) (Narrative) (Details) - USD ($)
|
3 Months Ended |
|
Mar. 31, 2018 |
Mar. 31, 2017 |
Dec. 31, 2017 |
| Commitments And Contingencies [Line Items] |
|
|
|
| General and administrative |
$ 16,085,000
|
$ 11,592,000
|
|
| Accounts payable, accrued expenses and other liabilities |
198,005,000
|
|
$ 192,716,000
|
| Mack-Cali Realty LP [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| General and administrative |
16,085,000
|
$ 11,592,000
|
|
| Accounts payable, accrued expenses and other liabilities |
198,005,000
|
|
$ 192,716,000
|
| Messr Krug [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Severance benefits |
1,312,500
|
|
|
| Prorated 2018 target bonus amount |
$ 93,750
|
|
|
| Messr Krug [Member] | Maximum [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Period for continuation of health insurance |
2 years
|
|
|
| COBRA payment |
$ 42,000
|
|
|
| Messr DeLorenzo [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Severance benefits |
$ 500,000
|
|
|
| Period for continuation of health insurance |
18 months
|
|
|
| Messr DeLorenzo [Member] | Maximum [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| COBRA payment |
$ 42,000
|
|
|
| Messr Krug And Messr DeLorenzo [Member] | Employee Severance [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| General and administrative |
2,700,000
|
|
|
| Accounts payable, accrued expenses and other liabilities |
$ 2,100,000
|
|
|
| Time-Based Award [Member] | Messr Krug [Member] | Mack-Cali Realty LP [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Accelerated vesting shares |
13,306
|
|
|
| Time-Based Award [Member] | Messr DeLorenzo [Member] | Mack-Cali Realty LP [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Partial accelerated vesting shares |
9,111
|
|
|
| Performance Shares [Member] | Messr Krug [Member] | Mack-Cali Realty LP [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Accelerated vesting shares |
18,665
|
|
|
| Performance Shares [Member] | Messr DeLorenzo [Member] | Mack-Cali Realty LP [Member] |
|
|
|
| Commitments And Contingencies [Line Items] |
|
|
|
| Partial accelerated vesting shares |
13,982
|
|
|