Annual report pursuant to Section 13 and 15(d)

Noncontrolling Interests In Subsidiaries (Changes In Noncontrolling Interests Of Subsidiaries) (Details)

v2.4.1.9
Noncontrolling Interests In Subsidiaries (Changes In Noncontrolling Interests Of Subsidiaries) (Details)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jan. 06, 2014
Noncontrolling Interests In Subsidiaries [Abstract]        
Balance, Beginning 11,864,775cli_CommonUnitsOutstanding 12,141,836cli_CommonUnitsOutstanding 12,197,122cli_CommonUnitsOutstanding 11,864,775cli_CommonUnitsOutstanding
Redemption of common units for shares of common stock (780,899)cli_CommonUnitsRedeemedForCommonShares (277,061)cli_CommonUnitsRedeemedForCommonShares (55,286)cli_CommonUnitsRedeemedForCommonShares  
Balance, Ending 11,083,876cli_CommonUnitsOutstanding 11,864,775cli_CommonUnitsOutstanding 12,141,836cli_CommonUnitsOutstanding 11,864,775cli_CommonUnitsOutstanding