Organization and Summary of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Jan. 01, 2019
Accounting Policies [Line Items]
Interest costs capitalized	$ 466	$ 126
Mortgage loan
Accounting Policies [Line Items]
Mortgage receivable increase	2,737
Allowance for credit loss increase	$ 174
Collectability analysis, period used	15 years
Minimum
Accounting Policies [Line Items]
Initial lease term	10 years
Maximum
Accounting Policies [Line Items]
Initial lease term	20 years
Notes Payable to Banks
Accounting Policies [Line Items]
Debt costs	$ 31,140		$ 26,932
Debt costs accumulated amortization	$ 7,492		$ 8,962
ASC 842
Accounting Policies [Line Items]
Operating lease – ROU assets				$ 7,735
Operating lease – lease liabilities				$ 10,155