XML 75 R62.htm IDEA: XBRL DOCUMENT v3.19.1
Schedule of Principal Payments Due on Long-term Debt (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Debt Disclosure [Abstract]  
2019 $ 10,480
2020 9,941
2021 9,272
2022 8,199
2023 8,140
Thereafter 954,206
Total outstanding principal of long-term debt $ 1,000,238