Shareholders' Equity Attributable to Continental Resources Share Repurchase Program (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	May 31, 2019
Share Repurchase Program [Abstract]
Stock Repurchase Program, Authorized Amount		$ 1,000.0
Stock Repurchased and Retired During Period, Shares	5,646,553
Treasury Stock, Retired, Cost Method, Amount	$ 190.2

Number of shares that have been repurchased and retired during the period.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration