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Real Estate Investments Long Lived Asset Held-For-Sale (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
	Aug. 14, 2015	Dec. 31, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Long Lived Assets Held-for-sale [Line Items]
Deposit, long-lived asset held-for-sale			$ 20,000		$ 20,000		$ 0
Gain on sale of real estate investments			124	$ 1,886	124	$ 1,886
Repayments of Long-term Debt					5,143	$ 435
Depreciation Expense on Reclassified Assets			0		135
Property, Plant and Equipment, Gross			1,642,783		1,642,783		1,524,422
Total			50,715		50,715		$ 61,434
Arizona Warehouse Building [Member]
Long Lived Assets Held-for-sale [Line Items]
Deposit, long-lived asset held-for-sale			20,000		20,000
Land [Member]
Long Lived Assets Held-for-sale [Line Items]
Property, Plant and Equipment, Gross			2,064		2,064
Building and Improvements [Member]
Long Lived Assets Held-for-sale [Line Items]
Property, Plant and Equipment, Gross			10,563		10,563
Land, Buildings and Improvements [Member]
Long Lived Assets Held-for-sale [Line Items]
Property, Plant and Equipment, Gross			12,627		12,627
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment			2,720		2,720
Total			9,907		$ 9,907
California Non-Utility Property [Member]
Long Lived Assets Held-for-sale [Line Items]
Gain on sale of real estate investments	$ 1,886
Proceeds from Sale of Real Estate Held-for-investment	2,015
Real Estate Selling Expenses	$ 91
Mortgages [Member]
Long Lived Assets Held-for-sale [Line Items]
Repayments of Long-term Debt			$ 2,938
Scenario, Forecast [Member] | Arizona Warehouse Building [Member]
Long Lived Assets Held-for-sale [Line Items]
Gain on sale of real estate investments		$ 5,800

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Deposit, long-lived asset held-for-sale

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Real Estate Selling Expenses

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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For the asset that is reclassified back to held and use from held-for-sale, the depreciation expense recognized when the asset is reclassified. This represents the difference between the carrying value at the time the decision to reclassify is made and the carrying amount that the asset would have had if it had never been classified as held for sale (including consideration of depreciation expense).

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The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Cash received from the sale of real estate that is held for investment, that is, it is part of an investing activity during the period.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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