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Long-term Debt - Schedule of Notes Payable (Details) - Other Notes Payable [Member] - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]    
Notes payable $ 104.2 $ 82.3
Notes Payable, Real Estate Sale / Leaseback Financing [Member]    
Debt Instrument [Line Items]    
Notes payable 82.8 77.7
Notes Payable, LIBOR plus 2.5% Construction Financing [Member] | LIBOR [Member]    
Debt Instrument [Line Items]    
Notes payable $ 14.6 $ 4.4
Effective interest rate (percent)   3.90%
Spread on variable rate (percent) 2.50% 2.50%
Notes Payable, 6.80% Financing [Member]    
Debt Instrument [Line Items]    
Notes payable $ 6.8 $ 0.2
Effective interest rate (percent)   6.80%
Minimum [Member] | Notes Payable, Real Estate Sale / Leaseback Financing [Member]    
Debt Instrument [Line Items]    
Effective interest rate (percent) 7.50% 7.50%
Minimum [Member] | Notes Payable, LIBOR plus 2.5% Construction Financing [Member] | LIBOR [Member]    
Debt Instrument [Line Items]    
Effective interest rate (percent) 4.80%  
Minimum [Member] | Notes Payable, 6.80% Financing [Member]    
Debt Instrument [Line Items]    
Effective interest rate (percent) 4.30%  
Maximum [Member] | Notes Payable, Real Estate Sale / Leaseback Financing [Member]    
Debt Instrument [Line Items]    
Effective interest rate (percent) 11.20% 11.20%
Maximum [Member] | Notes Payable, LIBOR plus 2.5% Construction Financing [Member] | LIBOR [Member]    
Debt Instrument [Line Items]    
Effective interest rate (percent) 5.00%  
Maximum [Member] | Notes Payable, 6.80% Financing [Member]    
Debt Instrument [Line Items]    
Effective interest rate (percent) 6.80%