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Subsequent Event (Notes)	6 Months Ended
Subsequent Event (Notes)	Jun. 30, 2019
Subsequent Event [Line Items]
Subsequent Events [Text Block]	Subsequent to June 30, 2019, QEP's Board of Directors completed its comprehensive review of strategic alternatives and determined that the best alternative for QEP's shareholders is to move forward as an independent company. The Company is not able to reasonably estimate the future costs to be incurred in connection with the review of strategic alternatives. On August 6, 2019, QEP's Board of Directors approved the reinstatement of a quarterly cash dividend of $0.02 per share of common stock, payable on September 10, 2019 to shareholders of record on August 20, 2019.