Long-Term Obligations and Notes Payable - Line of Credit Narrative (Details)							3 Months Ended	9 Months Ended
	May 19, 2020 USD ($)	Dec. 31, 2019 USD ($)	Nov. 12, 2019 USD ($)	May 22, 2019 USD ($)	Oct. 26, 2018	Mar. 30, 2018 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)	Dec. 15, 2019 USD ($)	Sep. 28, 2018 USD ($)	Mar. 30, 2018 CAD ($)	May 23, 2017 USD ($)
Debt Instrument [Line Items]
Outstanding borrowings		$ 2,067,100,000					$ 2,474,000,000.0	$ 2,474,000,000.0
Letter of credit
Debt Instrument [Line Items]
Maximum borrowing capacity							227,300,000	227,300,000
Senior notes | 2025 Notes [Member]
Debt Instrument [Line Items]
Face amount of debt							$ 250,000,000.0	$ 250,000,000.0				$ 250,000,000.0
Debt Instrument, Interest Rate, Effective Percentage							7.22%	7.22%
Outstanding borrowings		244,700,000					$ 245,400,000	$ 245,400,000
Line of credit | Hapoalim Term Loan [Member]
Debt Instrument [Line Items]
Face amount of debt		40,000,000.0					39,700,000	39,700,000
Maximum borrowing capacity							$ 100,000,000.0	$ 100,000,000.0
Debt Instrument, Interest Rate, Effective Percentage							3.58%	3.58%
Debt Instrument, Weighted Average Borrowing Rate							3.15%	3.15%
Debt Instrument, Periodic Payment		$ 100,000
Line of credit | London Interbank Offered Rate (LIBOR) | Hapoalim Term Loan [Member]
Debt Instrument [Line Items]
Basis spread (as percent)		3.00%
Line of credit | Revolving credit facility
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 1,000,000,000.0					$ 50,000,000.0
Debt Instrument, Interest Rate, Effective Percentage							3.57%	3.57%
Debt Instrument, Weighted Average Borrowing Rate							3.50%	3.50%
Outstanding borrowings		$ 30,000,000.0					$ 110,000,000.0	$ 110,000,000.0
Letters of credit outstanding							227,300,000	227,300,000
Remaining borrowing capacity							662,700,000	662,700,000
Line of credit | Revolving credit facility | DKL Revolver
Debt Instrument [Line Items]
Outstanding borrowings		588,400,000					760,700,000	760,700,000
Line of credit | Revolving credit facility | Reliant Bank Revolver
Debt Instrument [Line Items]
Maximum borrowing capacity							50,000,000.0	$ 50,000,000.0	$ 30,000,000.0
Commitment fee percentage (as percent)								0.50%
Outstanding borrowings		50,000,000.0					50,000,000.0	$ 50,000,000.0
Remaining borrowing capacity							0	0
Line of credit | Revolving credit facility | Base Rate
Debt Instrument [Line Items]
Basis spread (as percent)						0.25%
Line of credit | Revolving credit facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread (as percent)						1.25%
Term loan
Debt Instrument [Line Items]
Face amount of debt						$ 700,000,000.0
Maximum borrowing capacity							$ 1,276,300,000	$ 1,276,300,000
Debt Instrument, Original Debt Issue Discount						0.50%					0.50%
Proceeds from term loan						$ 300,000,000.0
Debt Instrument, Prepayment Premium						1.00%					1.00%
Debt Instrument, Weighted Average Borrowing Rate							3.04%	3.04%
Term loan | Incremental Term Loans
Debt Instrument [Line Items]
Face amount of debt	$ 200,000,000.0		$ 150,000,000.0	$ 943,000,000.0		$ 250,000,000.0
Debt Instrument, Original Debt Issue Discount	7.00%		1.21%	0.75%
Outstanding borrowings			$ 1,088,300,000
Debt Instrument, Periodic Payment	$ 500,000		$ 2,750,000	$ 2,380,000		$ 1,750,000
Term loan | Hapoalim Term Loan [Member]
Debt Instrument [Line Items]
Outstanding borrowings		$ 39,500,000					$ 39,300,000	$ 39,300,000
Term loan | Base Rate
Debt Instrument [Line Items]
Basis spread (as percent)						1.50%
Term loan | Base Rate | Incremental Term Loans
Debt Instrument [Line Items]
Basis spread (as percent)	4.50%
Term loan | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread (as percent)						2.50%
Term loan | London Interbank Offered Rate (LIBOR) | Incremental Term Loans
Debt Instrument [Line Items]
Basis spread (as percent)	5.50%
Debt Instrument, Variable Rate, Floor	1.00%
Letter of credit
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 400,000,000.0					$ 10,000,000.0
Fifth Third Bank | Line of credit | Revolving credit facility | DKL Revolver
Debt Instrument [Line Items]
Commitment fee percentage (as percent)								0.40%
Remaining borrowing capacity							$ 89,300,000	$ 89,300,000
Maximum borrowing capacity under accordion feature										$ 1,000,000,000.0
Weighted average interest rate (as percent)							2.69%	2.69%
Fifth Third Bank | Line of credit | Revolving credit facility | Base Rate | DKL Revolver
Debt Instrument [Line Items]
Description of variable rate basis								U.S. dollar prime rate
Fifth Third Bank | Line of credit | Revolving credit facility | Canadian Prime Rate | DKL Revolver
Debt Instrument [Line Items]
Description of variable rate basis								Canadian dollar prime rate
Fifth Third Bank | Line of credit | Revolving credit facility | London Interbank Offered Rate (LIBOR) | DKL Revolver
Debt Instrument [Line Items]
Description of variable rate basis								LIBOR
Maximum | Line of credit | Revolving credit facility
Debt Instrument [Line Items]
Commitment fee percentage (as percent)						0.375%		0.375%
Maximum | Line of credit | Revolving credit facility | Base Rate
Debt Instrument [Line Items]
Basis spread (as percent)							0.75%
Maximum | Line of credit | Revolving credit facility | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread (as percent)							1.75%
Maximum | Term loan
Debt Instrument [Line Items]
Debt Instrument, Covenant, Prepayment As A Variable Percentage Of Excess Cash Flow						0.00%					0.00%
Minimum | Line of credit | Revolving credit facility
Debt Instrument [Line Items]
Commitment fee percentage (as percent)						0.25%
Minimum | Term loan
Debt Instrument [Line Items]
Debt Instrument, Covenant, Prepayment As A Variable Percentage Of Excess Cash Flow						50.00%					50.00%
Minimum | Term loan | Base Rate
Debt Instrument [Line Items]
Basis spread (as percent)					1.25%
Minimum | Term loan | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread (as percent)					2.25%