Annual report pursuant to Section 13 and 15(d)

Acquisition of Lantern Rigs (Details)

v3.6.0.2
Acquisition of Lantern Rigs (Details)
12 Months Ended
Nov. 24, 2014
USD ($)
Jan. 29, 2014
USD ($)
drilling_rig
Dec. 31, 2016
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Business Acquisition [Line Items]          
Property, plant and equipment $ 101,529,882        
Consideration transferred $ 183,630,000        
Lantern Rigs          
Business Acquisition [Line Items]          
Number of drilling rigs acquired | drilling_rig   5      
Consideration transferred   $ 50,557,053      
Revenue of acquiree since acquisition date     $ 16,069,976 $ 24,262,672 $ 34,698,597
Net income (loss)     $ (7,409,865) $ 609,069 $ 6,873,499
Drilling Rigs | Lantern Rigs          
Business Acquisition [Line Items]          
Property, plant and equipment   $ 47,225,000