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QEP Midstream (Tables)
 3 Months Ended
Mar. 31, 2014
QEP Midstream [Abstract]  
Schedule of Sale of Stock by Subsidiary or Equity Method Investee Disclosure [Table Text Block]
Total proceeds from the IPO
 
$
483.0

IPO Costs
 
(33.4
)
Net proceeds from the IPO
 
449.6

QEPM Revolving credit facility origination fees
 
(3.0
)
QEPM Repayment of outstanding debt with QEP
 
(95.5
)
Net proceeds distributed to QEP from the IPO
 
$
351.1