Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Future Maturities of Long-Term Debt (Detail)

v3.8.0.1
Long-Term Debt - Future Maturities of Long-Term Debt (Detail)
$ in Thousands
Dec. 31, 2017
USD ($)
Debt Disclosure [Abstract]  
Principal/Net ofDiscount/Premium, 2018 $ 61,314
Principal/Net ofDiscount/Premium, 2019 25,179
Principal/Net ofDiscount/Premium, 2020 57,919
Principal/Net ofDiscount/Premium, 2021 126,532
Principal/Net ofDiscount/Premium, 2022 40,617
Principal/Net ofDiscount/Premium, Thereafter 726,350
Principal/Net ofDiscount/Premium, Total $ 1,037,911