Long-Term Obligations and Notes Payable - Reliant Bank Revolver (Details)	3 Months Ended
	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 15, 2019 USD ($)	Mar. 30, 2018 CAD ($)	Mar. 30, 2018 USD ($)
Line of Credit Facility [Line Items]
Long-term Debt	$ 2,216,900,000	$ 2,067,100,000
Line of credit | Revolving credit facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 50,000,000.0	$ 1,000,000,000.0
Long-term Debt	100,000,000.0	30,000,000.0
Remaining borrowing capacity	$ 681,700,000
Line of credit | Reliant Bank Revolver | Revolving credit facility
Line of Credit Facility [Line Items]
Stated interest rate (as percent)	4.50%		4.75%
Maximum borrowing capacity	$ 50,000,000.0		$ 30,000,000.0
Commitment fee percentage (as percent)	0.50%
Long-term Debt	$ 50,000,000.0	$ 50,000,000.0
Remaining borrowing capacity	$ 0