XML 65 R43.htm IDEA: XBRL DOCUMENT v3.20.4
Acquisitions - Asset Acquisitions - Summary of Allocation of Purchase Price to Assets Acquired and Liabilities Assumed (Parenthetical) (Details) - Whistler Energy II, LLC
$ in Millions
Aug. 31, 2018
USD ($)
Business Acquisition [Line Items]  
Cash acquired $ 37.8
Trade Accounts Receivable  
Business Acquisition [Line Items]  
Primary fair values of receivables acquired $ 3.2