Bank and Other Notes Payable - Future Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Mortgage loans payable on real estate
Deferred finance cost	$ (17,838)	$ (12,716)
Bank and other notes payable
Mortgage loans payable on real estate
2018	830
2019	875
2020	922
2021	937,105
Long term debt including debt premium	939,732
Deferred finance cost	(7,548)
Long-term debt	$ 932,184

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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