Long-term Debt - Table 6 (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Notes Payable [Abstract]
Sale Leaseback Transaction, Amount Due under Financing Arrangement	$ 28.0	$ 28.0
Long-term debt	1.3	2.9
Construction Payable	9.6	10.3
Other Notes Payable, Other	0.3	0.3
Other Notes Payable	$ 39.2	$ 41.5
Other Notes Payable, Other [Member]
Notes Payable [Abstract]
Debt Instruments, Effective Interest Rate	6.80%
7.8% Other Notes Payable [Member] | Acquisition, Note Payable [Member]
Notes Payable [Abstract]
Debt Instruments, Effective Interest Rate	7.80%	7.80%
2.7% Other Notes Payable [Member] | Construction, Note Payable [Member]
Notes Payable [Abstract]
Debt Instruments, Effective Interest Rate	2.70%
Debt Instrument, Description of Variable Rate Basis	LIBOR + 2.5%
Minimum [Member] | 8.1% Other Notes Payable [Member] | Sale/Leaseback Transactions [Member]
Notes Payable [Abstract]
Debt Instruments, Effective Interest Rate	8.10%	8.10%
Minimum [Member] | 5.7% Other Notes Payable [Member] | Other Notes Payable, Other [Member]
Notes Payable [Abstract]
Debt Instruments, Effective Interest Rate	5.70%	5.70%
Maximum [Member] | 11.2% Other Notes Payable [Member] | Sale/Leaseback Transactions [Member]
Notes Payable [Abstract]
Debt Instruments, Effective Interest Rate	11.20%	11.20%
Maximum [Member] | 6.8% Other Notes Payable [Member] | Other Notes Payable, Other [Member]
Notes Payable [Abstract]
Debt Instruments, Effective Interest Rate	6.80%	6.80%