SUMMARIZED CONDENSED CONSOLIDATING INFORMATION - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	$ 211,553	$ 54,282
Cash flows from investing activities:
Acquisition of real estate	(213,982)	(14,456)
Origination and fundings of loans receivable	(28,157)	(927)
Origination and fundings of preferred equity investments	(945)	(76)
Additions to real estate	(16,817)	(1,294)
Repayments of loans receivable	38,887	1,547
Repayments of preferred equity investments	375	2,766
Investment in unconsolidated JV	(354,461)	0
Net proceeds from the sales of real estate	278,201	6,099
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash used in investing activities	(296,899)	(6,341)
Cash flows from financing activities:
Net borrowings from revolving credit facility	35,000	6,000
Principal payments on secured debt	(2,128)	(2,049)
Payments of deferred financing costs	(12)	(124)
Distributions to noncontrolling interests	(72)	0
Preferred stock redemption	(143,750)	0
Issuance of common stock, net	(499)	(3,224)
Dividends paid on common and preferred stock	(164,736)	(60,691)
Distribution to parent	0	0
Intercompany financing	0	0
Net cash used in financing activities	(276,197)	(60,088)
Net decrease in cash, cash equivalents and restricted cash	(361,543)	(12,147)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	(252)	130
Cash, cash equivalents and restricted cash, beginning of period	587,449	34,665
Cash, cash equivalents and restricted cash, end of period	225,654	22,648
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	0
Origination and fundings of loans receivable	0	0
Origination and fundings of preferred equity investments	0	0
Additions to real estate	0	0
Repayments of loans receivable	0	0
Repayments of preferred equity investments	0	0
Investment in unconsolidated JV	0
Net proceeds from the sales of real estate	0	0
Distribution from subsidiaries	(5,338)	(4,948)
Intercompany financing	791,958	9,210
Net cash used in investing activities	786,620	4,262
Cash flows from financing activities:
Net borrowings from revolving credit facility	0	0
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Distributions to noncontrolling interests	0
Preferred stock redemption	0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	5,338	4,948
Intercompany financing	(791,958)	(9,210)
Net cash used in financing activities	(786,620)	(4,262)
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	204,440	49,670
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	0
Additions to real estate	(40)	(12)
Repayments of loans receivable	0	0
Repayments of preferred equity investments	0	0
Investment in unconsolidated JV	0
Net proceeds from the sales of real estate	0	0
Distribution from subsidiaries	2,669	2,474
Intercompany financing	(378,485)	(1,667)
Net cash used in investing activities	(375,856)	795
Cash flows from financing activities:
Net borrowings from revolving credit facility	0	0
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Distributions to noncontrolling interests	0
Preferred stock redemption	(143,750)
Issuance of common stock, net	(499)	(3,224)
Dividends paid on common and preferred stock	(164,736)	(60,691)
Distribution to parent	0	0
Intercompany financing	0	0
Net cash used in financing activities	(308,985)	(63,915)
Net decrease in cash, cash equivalents and restricted cash	(480,401)	(13,450)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	0	0
Cash, cash equivalents and restricted cash, beginning of period	511,670	18,168
Cash, cash equivalents and restricted cash, end of period	31,269	4,718
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	0
Origination and fundings of loans receivable	0	0
Origination and fundings of preferred equity investments	0	0
Additions to real estate	0	0
Repayments of loans receivable	0	0
Repayments of preferred equity investments	0	0
Investment in unconsolidated JV	0
Net proceeds from the sales of real estate	0	0
Distribution from subsidiaries	2,669	2,474
Intercompany financing	(413,473)	(7,543)
Net cash used in investing activities	(410,804)	(5,069)
Cash flows from financing activities:
Net borrowings from revolving credit facility	35,000	6,000
Principal payments on secured debt	0	0
Payments of deferred financing costs	(12)	(124)
Distributions to noncontrolling interests	0
Preferred stock redemption	0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	(2,669)	(2,474)
Intercompany financing	378,485	1,667
Net cash used in financing activities	410,804	5,069
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	0
Origination and fundings of loans receivable	0	0
Origination and fundings of preferred equity investments	0	0
Additions to real estate	0	0
Repayments of loans receivable	0	0
Repayments of preferred equity investments	0	0
Investment in unconsolidated JV	0
Net proceeds from the sales of real estate	0	0
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash used in investing activities	0	0
Cash flows from financing activities:
Net borrowings from revolving credit facility	0	0
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Distributions to noncontrolling interests	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 (used in) operating activities	1,041	(1,693)
Cash flows from investing activities:
Acquisition of real estate	(29,711)	(14,456)
Origination and fundings of loans receivable	(1,973)	(927)
Origination and fundings of preferred equity investments	(945)	(76)
Additions to real estate	(4,660)	(1,106)
Repayments of loans receivable	6,577	1,547
Repayments of preferred equity investments	375	2,766
Investment in unconsolidated JV	0
Net proceeds from the sales of real estate	232,059	6,099
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash used in investing activities	201,722	(6,153)
Cash flows from financing activities:
Net borrowings from revolving credit facility	0	0
Principal payments on secured debt	0	0
Payments of deferred financing costs	0	0
Distributions to noncontrolling interests	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	(63,658)	7,543
Net cash used in financing activities	(63,658)	7,543
Net decrease in cash, cash equivalents and restricted cash	139,105	(303)
Effect of foreign currency translation on cash, cash equivalents and restricted cash	(146)	69
Cash, cash equivalents and restricted cash, beginning of period	37,359	2,732
Cash, cash equivalents and restricted cash, end of period	176,318	2,498
Combined Non-Guarantor Subsidiaries | Reportable Legal Entities
Condensed Financial Statements, Captions [Line Items]
Net cash provided by (used in) operating activities	6,072	6,305
Cash flows from investing activities:
Acquisition of real estate	(184,271)	0
Origination and fundings of loans receivable	(26,184)	0
Origination and fundings of preferred equity investments	0	0
Additions to real estate	(12,117)	(176)
Repayments of loans receivable	32,310	0
Repayments of preferred equity investments	0	0
Investment in unconsolidated JV	(354,461)
Net proceeds from the sales of real estate	46,142	0
Distribution from subsidiaries	0	0
Intercompany financing	0	0
Net cash used in investing activities	(498,581)	(176)
Cash flows from financing activities:
Net borrowings from revolving credit facility	0	0
Principal payments on secured debt	(2,128)	(2,049)
Payments of deferred financing costs	0	0
Distributions to noncontrolling interests	(72)
Preferred stock redemption	0
Issuance of common stock, net	0	0
Dividends paid on common and preferred stock	0	0
Distribution to parent	(2,669)	(2,474)
Intercompany financing	477,131	0
Net cash used in financing activities	472,262	(4,523)
Net decrease in cash, cash equivalents and restricted cash	(20,247)	1,606
Effect of foreign currency translation on cash, cash equivalents and restricted cash	(106)	61
Cash, cash equivalents and restricted cash, beginning of period	38,420	13,765
Cash, cash equivalents and restricted cash, end of period	$ 18,067	$ 15,432