Investments in and Advances to Unconsolidated Joint Ventures (Tables)

12 Months Ended

Dec. 31, 2017

Equity Method Investments and Joint Ventures [Abstract]

Company owned interests in entities, accounted under equity method (dollars in thousands)

The Company owns interests in the following entities that are accounted for under the equity method (dollars in thousands):

		Carrying Amount
		December 31,
Entity(1)	Ownership %	2017		2016
CCRC JV	49	$	400,241	$	439,449
RIDEA II	40	259,651		—
Life Science JVs(2)	50 - 63	65,581		67,879
MBK JV	50	38,005		38,909
Development JVs(3)	50 - 90	23,365		10,459
Medical Office JVs(4)	20 - 67	12,488		13,438
K&Y JVs(5)	80	1,283		1,342
Advances to unconsolidated joint ventures, net		226		15
		$	800,840	$	571,491

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(1) These entities are not consolidated because the Company does not control, through voting rights or other means, the JV.

(2) Includes the following unconsolidated partnerships (and the Company’s ownership percentage): (i) Torrey Pines Science Center, LP (50%); (ii) Britannia Biotech Gateway, LP (55%); and (iii) LASDK, LP (63%).

(3) Includes four unconsolidated development partnerships (and the Company’s ownership percentage): (i) Vintage Park Development JV (85%); (ii) Waldwick JV (85%); (iii) Otay Ranch JV (90%); and (iv) MBK Development JV (50%).

(4) Includes three unconsolidated medical office partnerships (and the Company’s ownership percentage): HCP Ventures IV, LLC (20%); HCP Ventures III, LLC (30%); and Suburban Properties, LLC (67%).

(5) Includes three unconsolidated joint ventures.