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Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Equity Contributions, Percent

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Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures, Number of Members

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Lease of building.

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Number of joint venture contracts.

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Area of land held.

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Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Investment in Unconsolidated and Consolidated Joint Ventures - Investment Information (Details) ft² in Thousands		3 Months Ended			9 Months Ended
	Oct. 26, 2015 USD ($)	Sep. 30, 2015 USD ($) a	Sep. 30, 2014 USD ($)	Jun. 30, 2013 USD ($) ft² member	Sep. 30, 2015 USD ($) a ft² joint_venture	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures		$ 36,418,000			$ 36,418,000		$ 32,604,000
Equity in earnings (losses)		2,055,000	$ 1,707,000		$ 4,861,000	$ 3,293,000
Number of joint venture contracts \| joint_venture					3
Long-term debt		$ 83,217,000			$ 83,217,000		81,309,000
Line of Credit
Schedule of Equity Method Investments [Line Items]
Maximum borrowing capacity								$ 52,000,000
Petro Travel Plaza Holdings LLC
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses)					$ 4,871,000	3,052,000
Unconsolidated joint ventures, ownership interest		60.00%			60.00%
Unconsolidated joint ventures, voting rights					50.00%
Long-term debt		$ 15,188,000			$ 15,188,000		15,808,000
Investment in unconsolidated joint ventures		$ 21,320,000			$ 21,320,000
Tejon Mountain Village LLC
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses)						(35,000)
Rockefeller Joint Ventures
Schedule of Equity Method Investments [Line Items]
Number of joint venture contracts \| joint_venture					3
Number of acres for development \| a					91
Development of land in TRCC including pursuing foreign trade zone \| a		500			500
Investment in unconsolidated joint ventures		$ 15,098,000			$ 15,098,000
Five West Parcel LLC
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses)					$ 376,000	54,000
Unconsolidated joint ventures, ownership interest		50.00%			50.00%
Area of building owned and leased \| ft²					606
Long-term debt		$ 10,863,000			$ 10,863,000		11,000,000
18-19 West LLC
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses)					$ (44,000)	13,000
Unconsolidated joint ventures, ownership interest		50.00%			50.00%
Long-term debt		$ 0			$ 0		0
Number of acres for development \| a					61.5
TRCC-East
Schedule of Equity Method Investments [Line Items]
Number of acres for development \| ft²				326
TRCC/Rock Outlet Center
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated joint ventures				$ 87,000,000
Construction loan percent of costs				60.00%
Equity contributions, percent				40.00%
Number of members \| member				2
Equity in earnings (losses)					$ (342,000)	209,000
Unconsolidated joint ventures, voting rights				50.00%
Long-term debt		$ 51,557,000			51,557,000		45,449,000
Centennial Founders, LLC
Schedule of Equity Method Investments [Line Items]
Equity in earnings (losses)					$ 0	$ 0
Consolidated joint venture, ownership interest		74.87%			74.87%
Long-term debt		$ 0			$ 0		$ 0
Building Development \| Rockefeller Joint Ventures
Schedule of Equity Method Investments [Line Items]
Number of joint venture contracts \| joint_venture					2
Subsequent Event \| Petro Travel Plaza Holdings LLC
Schedule of Equity Method Investments [Line Items]
Dividends	$ 7,200,000