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Leased Properties - Consolidated Company Minimum Future Rental Payments Under Operating Leases with Terms in Excess of One Year (Detail)
$ in Thousands
Dec. 31, 2015
USD ($)
Leases [Abstract]  
2016 $ 5,836
2017 4,297
2018 3,560
2019 3,011
2020 2,708
Subsequent to 2020 17,889
Total minimum future rental payments $ 37,301