Summary of Operations in Angola (Detail) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Jun. 30, 2019
USD ($)
Vessel
|
Jun. 30, 2018
USD ($)
Vessel
|
Jun. 30, 2019
USD ($)
Vessel
|
Jun. 30, 2018
USD ($)
Vessel
|
|
Schedule Of Equity Method Investments [Line Items] | ||||
Revenues of Angolan operations (in thousands) | $ | $ 125,859 | $ 105,601 | $ 248,008 | $ 197,094 |
ANGOLA | ||||
Schedule Of Equity Method Investments [Line Items] | ||||
Revenues of Angolan operations (in thousands) | $ | $ 14,272 | $ 14,550 | $ 29,670 | $ 28,719 |
Percent of consolidated vessel revenues | 12.00% | 14.00% | 12.00% | 15.00% |
Number of company owned vessels in Angola | Vessel | 32 | 37 | 34 | 38 |
Number of stacked company owned vessels in Angola | Vessel | 13 | 16 | 14 | 17 |