SUMMARIZED CONDENSED CONSOLIDATING INFORMATION - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ 53,959	$ 101,647
Cash flows from investing activities:
Acquisition of real estate	0	(172,001)
Origination and fundings of loans receivable	(2,776)	(13,232)
Origination and fundings of preferred equity investments	0	(928)
Additions to real estate	(5,072)	(11,539)
Repayments of loans receivable	5,251	28,805
Repayments of preferred equity investments	2,087	234
Investment in unconsolidated joint venture	0	(354,461)
Net proceeds from the sales of real estate	6,857	6,743
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash provided by (used in) investing activities	6,347	(516,379)
Cash flows from financing activities:
Net repayments of revolving credit facility	(4,000)	(30,000)
Principal payments on secured debt	(849)	(1,061)
Payments of deferred financing costs	(6)	(6)
Distributions to noncontrolling interests	(36)	(37)
Issuance of common stock, net	(2,323)	(499)
Dividends paid on common and preferred stock	(80,260)	(82,789)
Distribution to parent	0	0
Intercompany financing	0	0
Net cash used in financing activities	(87,474)	(114,392)
Net decrease in cash, cash equivalents and restricted cash	(27,168)	(529,124)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	149	(155)
Cash, cash equivalents and restricted cash, beginning of period	59,658	587,449
Cash, cash equivalents and restricted cash, end of period	32,639	58,170
Elimination
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	0	0
Cash flows from investing activities:
Acquisition of real estate		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
Distribution from subsidiaries	(5,138)	(5,114)
Intercompany financing	(12,238)	947,430
Net cash provided by (used in) investing activities	(17,376)	942,316
Cash flows from financing activities:
Net repayments of revolving credit facility	0	0
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Distributions to noncontrolling interests	0	0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	5,138	5,114
Intercompany financing	12,238	(947,430)
Net cash used in financing activities	17,376	(942,316)
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 (used in) operating activities	49,833	97,936
Cash flows from investing activities:
Acquisition of real estate		0
Origination and fundings of loans receivable	0	0
Origination and fundings of preferred equity investments		0
Additions to real estate	0	(38)
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
Distribution from subsidiaries	2,569	2,557
Intercompany financing	4,116	(488,718)
Net cash provided by (used in) investing activities	6,685	(486,199)
Cash flows from financing activities:
Net repayments of revolving credit facility	0	0
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Distributions to noncontrolling interests	0	0
Issuance of common stock, net	(2,323)	(499)
Dividends paid on common and preferred stock	(80,260)	(82,789)
Distribution to parent	0	0
Intercompany financing	0	0
Net cash used in financing activities	(82,583)	(83,288)
Net decrease in cash, cash equivalents and restricted cash	(26,065)	(471,551)
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	14,770	40,119
Operating Partnership | Reportable Legal Entities
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	0	0
Cash flows from investing activities:
Acquisition of real estate		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
Distribution from subsidiaries	2,569	2,557
Intercompany financing	8,122	(458,712)
Net cash provided by (used in) investing activities	10,691	(456,155)
Cash flows from financing activities:
Net repayments of revolving credit facility	(4,000)	(30,000)
Principal payments on secured debt	0	0
Payments of deferred financing costs	(6)	(6)
Distributions to noncontrolling interests	0	0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	(2,569)	(2,557)
Intercompany financing	(4,116)	488,718
Net cash used in financing activities	(10,691)	456,155
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 (used in) operating activities	0	0
Cash flows from investing activities:
Acquisition of real estate		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
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
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Distributions to noncontrolling interests	0	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 (used in) operating activities	(379)	(55)
Cash flows from investing activities:
Acquisition of real estate		(172,001)
Origination and fundings of loans receivable	(352)	(1,027)
Origination and fundings of preferred equity investments		(928)
Additions to real estate	(1,936)	(3,496)
Repayments of loans receivable	61	7,491
Repayments of preferred equity investments	2,087	234
Investment in unconsolidated joint venture		0
Net proceeds from the sales of real estate	3,829	0
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash provided by (used in) investing activities	3,689	(169,727)
Cash flows from financing activities:
Net repayments of revolving credit facility	0	0
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Distributions to noncontrolling interests	0	0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	0	0
Intercompany financing	(5,331)	134,797
Net cash used in financing activities	(5,331)	134,797
Net decrease in cash, cash equivalents and restricted cash	(2,021)	(34,985)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	108	(72)
Cash, cash equivalents and restricted cash, beginning of period	5,328	37,359
Cash, cash equivalents and restricted cash, end of period	3,415	2,302
Combined Non-Guarantor Subsidiaries | Reportable Legal Entities
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	4,505	3,766
Cash flows from investing activities:
Acquisition of real estate		0
Origination and fundings of loans receivable	(2,424)	(12,205)
Origination and fundings of preferred equity investments		0
Additions to real estate	(3,136)	(8,005)
Repayments of loans receivable	5,190	21,314
Repayments of preferred equity investments	0	0
Investment in unconsolidated joint venture		(354,461)
Net proceeds from the sales of real estate	3,028	6,743
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash provided by (used in) investing activities	2,658	(346,614)
Cash flows from financing activities:
Net repayments of revolving credit facility	0	0
Principal payments on secured debt	(849)	(1,061)
Payments of deferred financing costs	0	0
Distributions to noncontrolling interests	(36)	(37)
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	(2,569)	(2,557)
Intercompany financing	(2,791)	323,915
Net cash used in financing activities	(6,245)	320,260
Net decrease in cash, cash equivalents and restricted cash	918	(22,588)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	41	(83)
Cash, cash equivalents and restricted cash, beginning of period	13,495	38,420
Cash, cash equivalents and restricted cash, end of period	$ 14,454	$ 15,749