SUMMARIZED CONDENSED CONSOLIDATING INFORMATION - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 276,981	$ 283,024
Cash flows from investing activities:
Acquisition of real estate	(14,977)	(239,001)
Origination and fundings of loans receivable	(9,441)	(41,448)
Origination and fundings of preferred equity investments	0	(5,285)
Additions to real estate	(15,985)	(21,695)
Repayments of loans receivable	13,761	48,282
Repayments of preferred equity investments	3,672	6,491
Investment in unconsolidated joint venture	0	(354,461)
Net proceeds from the sales of real estate	321,715	290,864
Buyout of noncontrolling interests	(200)	0
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash provided by (used in) investing activities	298,545	(316,253)
Cash flows from financing activities:
Net repayments of revolving credit facility	(424,000)	(22,000)
Proceeds from issuance of senior unsecured notes	297,039	0
Principal payments on senior unsecured notes	(500,000)	0
Principal payments on secured debt	(2,566)	(3,202)
Payments of deferred financing costs	(14,001)	(12)
Payments related to extinguishment of debt	(6,897)	0
Distributions to noncontrolling interests	(116)	(107)
Preferred stock redemption	0	(143,750)
Issuance of common stock, net	302,030	(499)
Dividends paid on common and preferred stock	(247,222)	(244,978)
Distribution to parent	0	0
Intercompany financing	0	0
Net cash used in financing activities	(595,733)	(414,548)
Net decrease in cash, cash equivalents and restricted cash	(20,207)	(447,777)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	211	(156)
Cash, cash equivalents and restricted cash, beginning of period	59,658	587,449
Cash, cash equivalents and restricted cash, end of period	39,662	139,516
Elimination
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	0	0
Cash flows from investing activities:
Acquisition of real estate	0	0
Origination and fundings of loans receivable	0	0
Origination and fundings of preferred equity investments		0
Additions to real estate	0	0
Repayments of loans receivable	0	0
Repayments of preferred equity investments	0	0
Investment in unconsolidated joint venture		0
Net proceeds from the sales of real estate	0	0
Buyout of noncontrolling interests	0
Distribution from subsidiaries	(10,278)	(10,842)
Intercompany financing	45,771	717,452
Net cash provided by (used in) investing activities	35,493	706,610
Cash flows from financing activities:
Net repayments of revolving credit facility	0	0
Proceeds from issuance of senior unsecured notes	0
Principal payments on senior unsecured notes	0
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Payments related to extinguishment of debt	0
Distributions to noncontrolling interests	0	0
Preferred stock redemption		0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	10,278	10,842
Intercompany financing	(45,771)	(717,452)
Net cash used in financing activities	(35,493)	(706,610)
Net decrease in cash, cash equivalents and restricted cash	0	0
Effect of foreign currency translation on cash, cash equivalents and restricted cash	0	0
Cash, cash equivalents and restricted cash, beginning of period	0	0
Cash, cash equivalents and restricted cash, end of period	0	0
Parent Company | Reportable Legal Entities
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	267,509	271,511
Cash flows from investing activities:
Acquisition of real estate	0	0
Origination and fundings of loans receivable	0	0
Origination and fundings of preferred equity investments		0
Additions to real estate	(107)	(40)
Repayments of loans receivable	0	0
Repayments of preferred equity investments	0	0
Investment in unconsolidated joint venture		0
Net proceeds from the sales of real estate	0	0
Buyout of noncontrolling interests	0
Distribution from subsidiaries	5,139	5,421
Intercompany financing	(346,815)	(369,732)
Net cash provided by (used in) investing activities	(341,783)	(364,351)
Cash flows from financing activities:
Net repayments of revolving credit facility	0	0
Proceeds from issuance of senior unsecured notes	0
Principal payments on senior unsecured notes	0
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Payments related to extinguishment of debt	0
Distributions to noncontrolling interests	0	0
Preferred stock redemption		(143,750)
Issuance of common stock, net	302,030	(499)
Dividends paid on common and preferred stock	(247,222)	(244,978)
Distribution to parent	0	0
Intercompany financing	0	0
Net cash used in financing activities	54,808	(389,227)
Net decrease in cash, cash equivalents and restricted cash	(19,466)	(482,067)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	0	0
Cash, cash equivalents and restricted cash, beginning of period	40,835	511,670
Cash, cash equivalents and restricted cash, end of period	21,369	29,603
Operating Partnership | Reportable Legal Entities
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	0	0
Cash flows from investing activities:
Acquisition of real estate	0	0
Origination and fundings of loans receivable	0	0
Origination and fundings of preferred equity investments		0
Additions to real estate	0	0
Repayments of loans receivable	0	0
Repayments of preferred equity investments	0	0
Investment in unconsolidated joint venture		0
Net proceeds from the sales of real estate	0	0
Buyout of noncontrolling interests	0
Distribution from subsidiaries	5,139	5,421
Intercompany financing	301,044	(347,720)
Net cash provided by (used in) investing activities	306,183	(342,299)
Cash flows from financing activities:
Net repayments of revolving credit facility	(424,000)	(22,000)
Proceeds from issuance of senior unsecured notes	297,039
Principal payments on senior unsecured notes	(500,000)
Principal payments on secured debt	0	0
Payments of deferred financing costs	(14,001)	(12)
Payments related to extinguishment of debt	(6,897)
Distributions to noncontrolling interests	0	0
Preferred stock redemption		0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	(5,139)	(5,421)
Intercompany financing	346,815	369,732
Net cash used in financing activities	(306,183)	342,299
Net decrease in cash, cash equivalents and restricted cash	0	0
Effect of foreign currency translation on cash, cash equivalents and restricted cash	0	0
Cash, cash equivalents and restricted cash, beginning of period	0	0
Cash, cash equivalents and restricted cash, end of period	0	0
Sabra Capital Corporation | Reportable Legal Entities
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	0	0
Cash flows from investing activities:
Acquisition of real estate	0	0
Origination and fundings of loans receivable	0	0
Origination and fundings of preferred equity investments		0
Additions to real estate	0	0
Repayments of loans receivable	0	0
Repayments of preferred equity investments	0	0
Investment in unconsolidated joint venture		0
Net proceeds from the sales of real estate	0	0
Buyout of noncontrolling interests	0
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash provided by (used in) investing activities	0	0
Cash flows from financing activities:
Net repayments of revolving credit facility	0	0
Proceeds from issuance of senior unsecured notes	0
Principal payments on senior unsecured notes
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Payments related to extinguishment of debt	0
Distributions to noncontrolling interests	0	0
Preferred stock redemption		0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	0	0
Intercompany financing	0	0
Net cash used in financing activities	0	0
Net decrease in cash, cash equivalents and restricted cash	0	0
Effect of foreign currency translation on cash, cash equivalents and restricted cash	0	0
Cash, cash equivalents and restricted cash, beginning of period	0	0
Cash, cash equivalents and restricted cash, end of period	0	0
Combined Guarantor Subsidiaries | Reportable Legal Entities
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	487	1,038
Cash flows from investing activities:
Acquisition of real estate	(14,977)	(54,715)
Origination and fundings of loans receivable	(6,018)	(2,650)
Origination and fundings of preferred equity investments		(5,285)
Additions to real estate	(8,314)	(5,763)
Repayments of loans receivable	124	6,534
Repayments of preferred equity investments	3,672	6,491
Investment in unconsolidated joint venture		0
Net proceeds from the sales of real estate	21,586	79,738
Buyout of noncontrolling interests	(200)
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash provided by (used in) investing activities	(4,127)	24,350
Cash flows from financing activities:
Net repayments of revolving credit facility	0	0
Proceeds from issuance of senior unsecured notes	0
Principal payments on senior unsecured notes	0
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Payments related to extinguishment of debt	0
Distributions to noncontrolling interests	0	0
Preferred stock redemption		0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	0	0
Intercompany financing	2,637	(28,697)
Net cash used in financing activities	2,637	(28,697)
Net decrease in cash, cash equivalents and restricted cash	(1,003)	(3,309)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	142	(82)
Cash, cash equivalents and restricted cash, beginning of period	5,328	6,761
Cash, cash equivalents and restricted cash, end of period	4,467	3,370
Combined Non-Guarantor Subsidiaries | Reportable Legal Entities
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	8,985	10,475
Cash flows from investing activities:
Acquisition of real estate	0	(184,286)
Origination and fundings of loans receivable	(3,423)	(38,798)
Origination and fundings of preferred equity investments		0
Additions to real estate	(7,564)	(15,892)
Repayments of loans receivable	13,637	41,748
Repayments of preferred equity investments	0	0
Investment in unconsolidated joint venture		(354,461)
Net proceeds from the sales of real estate	300,129	211,126
Buyout of noncontrolling interests	0
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash provided by (used in) investing activities	302,779	(340,563)
Cash flows from financing activities:
Net repayments of revolving credit facility	0	0
Proceeds from issuance of senior unsecured notes	0
Principal payments on senior unsecured notes	0
Principal payments on secured debt	(2,566)	(3,202)
Payments of deferred financing costs	0	0
Payments related to extinguishment of debt	0
Distributions to noncontrolling interests	(116)	(107)
Preferred stock redemption		0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	(5,139)	(5,421)
Intercompany financing	(303,681)	376,417
Net cash used in financing activities	(311,502)	367,687
Net decrease in cash, cash equivalents and restricted cash	262	37,599
Effect of foreign currency translation on cash, cash equivalents and restricted cash	69	(74)
Cash, cash equivalents and restricted cash, beginning of period	13,495	69,018
Cash, cash equivalents and restricted cash, end of period	$ 13,826	$ 106,543