Commitments and Contingencies Commitment and Contingencies - Narrative (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) claim
Long-term Purchase Commitment [Line Items]
Minimum EBITDA benchmark for earnout	$ 3,500,000.0
Maximum earnout payment amount	4,500,000.0
Site contingency reimbursement	6,300,000
Site contingencies capital expenditures	$ 9,600,000
Bankruptcy claims number of claims to be settled | claim	2
Bankruptcy claims amount of claims to be settled	$ 22,400,000
Settlement liabilities, current	500,000
Maximum bankruptcy claims remaining	$ 22,400,000
Predecessor working ownership percentage	3.40%
Allowed claims, settlement ratio	0.0544
Tesoros
Long-term Purchase Commitment [Line Items]
Deductible for indemnification obligation	$ 1,000,000
Indemnification obligation cap	(15,000,000)
Clear Air Act Violation
Long-term Purchase Commitment [Line Items]
Final decree high estimate	30,000,000
Pending Litigation
Long-term Purchase Commitment [Line Items]
Claim amount for environmental losses	1,000,000
Wyoming Refinery One
Long-term Purchase Commitment [Line Items]
Environmental costs recognized, capitalized	$ 18,000,000
Environmental costs recognized, period for recognition of one third costs	5 years
Environmental costs recognized, period for recognition	30 years
Wyoming Refinery Two | Wastewater Treatment Pond
Long-term Purchase Commitment [Line Items]
Environmental costs recognized, capitalized	$ 500,000
Wyoming Refinery Two | Waste Water Treatment System
Long-term Purchase Commitment [Line Items]
Environmental costs recognized, capitalized	11,600,000
Wyoming Refinery
Long-term Purchase Commitment [Line Items]
Loss contingency, range of possible loss, maximum	$ 100,000