Commitments And Contingencies Schedule of Development Commitments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($)
Construction and Development Costs	$ (24,437)
Remaining Unfunded Development Commitment	63,943
Maximum Commitment For All Active Development Projects	88,380
Ensign Group [Member] | Capital Addition Purchase Commitments [Member]
Construction and Development Costs	(14,000)
Remaining Unfunded Development Commitment	42,000
Maximum Commitment For All Active Development Projects	56,000
Chancellor Healthcare [Member] | Development Commitment [Member]
Construction and Development Costs	(62)
Remaining Unfunded Development Commitment	588
Maximum Commitment For All Active Development Projects	650
Village Concepts [Member] | Capital Improvement Commitment [Member]
Construction and Development Costs	(762)
Remaining Unfunded Development Commitment	6,688
Maximum Commitment For All Active Development Projects	7,450
Navion Senior Solutions [Member] | Development Commitment [Member]
Construction and Development Costs	0
Remaining Unfunded Development Commitment	650
Maximum Commitment For All Active Development Projects	650
East Lake / Watermark Retirement [Member] | Capital Improvement Commitment [Member]
Construction and Development Costs	(5,900)
Remaining Unfunded Development Commitment	4,100
Maximum Commitment For All Active Development Projects	10,000
Sante Partners Commitment [Member] | Capital Improvement Commitment [Member]
Construction and Development Costs	(2,621)
Remaining Unfunded Development Commitment	879
Maximum Commitment For All Active Development Projects	3,500
Bickford Senior Living [Member] | Capital Improvement Commitment [Member]
Construction and Development Costs	(122)
Remaining Unfunded Development Commitment	2,278
Maximum Commitment For All Active Development Projects	2,400
East Lake Capital [Member] | Capital Improvement Commitment [Member]
Construction and Development Costs	0
Remaining Unfunded Development Commitment	400
Maximum Commitment For All Active Development Projects	400
Senior Living Communities [Member] | Capital Improvement Commitment [Member]
Construction and Development Costs	(970)
Remaining Unfunded Development Commitment	5,860
Maximum Commitment For All Active Development Projects	6,830
Discovery Senior Living [Member] | Capital Improvement Commitment [Member]
Construction and Development Costs	0
Remaining Unfunded Development Commitment	500
Maximum Commitment For All Active Development Projects	$ 500