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Customer Leases, as Lessor - Future Minimum Lease Payments to be Received Under Non Cancelable Operating Customer Leases (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Leases [Abstract]  
2014 (July-December) $ 93,528
2015 168,511
2016 136,426
2017 102,526
2018 78,178
Thereafter 164,711
Total $ 743,880