Long-Term Debt Long-Term Debt (Details 2) - Senior Notes [Member]	12 Months Ended
	Dec. 31, 2015
Rose Rock Notes due 2023 [Member] | Debt Instrument, Redemption, Period One [Member]
Debt Instrument [Line Items]
Early redemption premium	102.813%
Rose Rock Notes due 2023 [Member] | Debt Instrument, Redemption, Period Two [Member]
Debt Instrument [Line Items]
Early redemption premium	101.406%
Rose Rock Notes due 2023 [Member] | Debt Instrument, Redemption, Period Three [Member]
Debt Instrument [Line Items]
Early redemption premium	100.00%
Rose Rock Notes due 2022 [Member] | Debt Instrument, Redemption, Period One [Member]
Debt Instrument [Line Items]
Early redemption premium	104.219%
Rose Rock Notes due 2022 [Member] | Debt Instrument, Redemption, Period Two [Member]
Debt Instrument [Line Items]
Early redemption premium	102.813%
Rose Rock Notes due 2022 [Member] | Debt Instrument, Redemption, Period Three [Member]
Debt Instrument [Line Items]
Early redemption premium	101.406%
Rose Rock Notes due 2022 [Member] | Debt Instrument, Redemption, Period Four [Member]
Debt Instrument [Line Items]
Early redemption premium	100.00%