Annual report pursuant to Section 13 and 15(d)

Redeemable Noncontrolling Interest (Details)

v2.4.1.9
Redeemable Noncontrolling Interest (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Redeemable Noncontrolling Interest [Roll Forward]      
Redeemable noncontrolling interest, Beginning balance $ 17,758us-gaap_RedeemableNoncontrollingInterestEquityFairValue $ 10,298us-gaap_RedeemableNoncontrollingInterestEquityFairValue $ 8,908us-gaap_RedeemableNoncontrollingInterestEquityFairValue
Distribution to noncontrolling interest (1,369)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders (1,037)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders 0us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders
Net income (loss) attributable to noncontrolling interest 2,162ofc_RedeemableNoncontrollingInterestEquityNetIncomeLossAttributabletoNoncontrollingInterest 1,376ofc_RedeemableNoncontrollingInterestEquityNetIncomeLossAttributabletoNoncontrollingInterest (2,565)ofc_RedeemableNoncontrollingInterestEquityNetIncomeLossAttributabletoNoncontrollingInterest
Adjustment to arrive at fair value of redeemable noncontrolling interest (134)us-gaap_MinorityInterestChangeInRedemptionValue 7,121us-gaap_MinorityInterestChangeInRedemptionValue 3,955us-gaap_MinorityInterestChangeInRedemptionValue
Redeemable noncontrolling interest, Ending balance $ 18,417us-gaap_RedeemableNoncontrollingInterestEquityFairValue $ 17,758us-gaap_RedeemableNoncontrollingInterestEquityFairValue $ 10,298us-gaap_RedeemableNoncontrollingInterestEquityFairValue