Annual report pursuant to Section 13 and 15(d)

Commitments And Contingencies (Ground Lease Agreements) (Narrative) (Details)

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Commitments And Contingencies (Ground Lease Agreements) (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Commitments And Contingencies [Abstract]      
Ground lease expense incurred $ 406,000cli_OperatingLeaseExpense $ 406,000cli_OperatingLeaseExpense $ 406,000cli_OperatingLeaseExpense