XML 56 R50.htm IDEA: XBRL DOCUMENT v3.22.2.2
INVESTMENTS IN DEBT AND EQUITY SECURITIES (Amortized cost to fair value) (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]    
Debt securities, available-for-sale $ 6,315 $ 9,680
Corporate Bond Securities    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 5,354 9,049
Unrealized gains/(losses) 961 631
Debt securities, available-for-sale 6,315 9,680
NorAm Drilling Bond    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 4,132 4,132
Unrealized gains/(losses) 487 487
Debt securities, available-for-sale 4,619 4,619
NT Rig Holdco Liquidity 12%    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost 1,222 4,917
Unrealized gains/(losses) 474 144
Debt securities, available-for-sale $ 1,696 $ 5,061
Debt instrument, redemption price (in percentage) 12.00% 12.00%
NT Rig Holdco 7.5%    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 0 $ 0
Unrealized gains/(losses) 0 0
Debt securities, available-for-sale $ 0 0
Debt instrument, redemption price (in percentage) 7.50%  
Oro Negro 7.5%    
Debt Securities, Available-for-sale [Line Items]    
Amortized Cost $ 0 0
Unrealized gains/(losses) 0 0
Debt securities, available-for-sale $ 0 $ 0
Debt instrument, redemption price (in percentage) 7.50%