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Projected Minimum Annual Rental Commitments, Exclusive of Taxes and Other Charges (Detail)
$ in Thousands
Dec. 31, 2015
USD ($)
Lease Arrangements [Line Items]  
2016 $ 28,833
2017 26,222
2018 22,212
2019 19,319
2020 and thereafter 61,877
Total minimum future rentals $ 158,463