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Supplemental Disclosure to Statements of Cash Flows (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Supplemental Cash Flow Information [Abstract]    
Write off of fully depreciated/amortized property and deferred costs $ 14,436lry_WriteOffOfFullyDepreciatedPropertyAndDeferredCosts $ 11,279lry_WriteOffOfFullyDepreciatedPropertyAndDeferredCosts
Write off of depreciated property and deferred costs due to sale 10,295lry_WriteOffOfDepreciatedPropertyAndDeferredCostsDueToSale 131,026lry_WriteOffOfDepreciatedPropertyAndDeferredCostsDueToSale
Unrealized loss on cash flow hedge (947)lry_Unrealizedgainlossoncashflowhedgenoncashtransaction (511)lry_Unrealizedgainlossoncashflowhedgenoncashtransaction
Changes in accrued development capital expenditures $ (8,343)us-gaap_ConstructionInProgressExpendituresIncurredButNotYetPaid $ 2,280us-gaap_ConstructionInProgressExpendituresIncurredButNotYetPaid