Acquisition (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Apr. 30, 2019
Business Acquisition [Line Items]
Purch Price Adj Disc Cash Flow	10.00%	10.00%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	$ 1,700,000	$ 1,700,000
Conversion of Stock, Shares Issued	0.158
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	39,000,000
Document Period End Date		Jun. 30, 2020
Business Acquisition, Transaction Costs	$ 20,200	$ 20,200
Line of Credit Facility, Initial Borrowing Base	2,100,000	2,100,000
Revolving Credit Facility Elected Commitment Amount	1,700,000	1,700,000	$ 1,700,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Long-term Debt	555,500	555,500
Stock Repurchase Program, Authorized Amount	$ 525,000	$ 525,000		$ 200,000