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Leases
 12 Months Ended
Dec. 31, 2017
Leases [Abstract]  
Leases

7.Leases.

 

At December 31, 2017, the total carrying value of property owned by the Company which is leased or held for lease to others is summarized as follows (in thousands):

 

Construction aggregates property

   $ 35,294  
Commercial property     440,083  
      475,377  
less accumulated depreciation and depletion     93,581  
    $ 381,796  

 

The minimum future straight-lined rentals due the Company on noncancelable leases as of December 31, 2017 are as follows: 2018 - $33,347,000; 2019 - $26,118,000; 2020 - $21,938,000; 2021 - $18,400,000; 2022 - $15,058,000; 2023 and subsequent years $56,149,000.