Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement - Property, Plant, and Equipment Reclassified (Details)

v3.7.0.1
Fair Value Measurement - Property, Plant, and Equipment Reclassified (Details)
$ in Thousands
3 Months Ended
Jun. 30, 2017
USD ($)
Prospect Shipyard | Disposal Group, Held-for-sale, Not Discontinued Operations  
Long Lived Assets Held-for-sale [Line Items]  
Impairment of assets held for sale $ 389