Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) $ in Thousands	Total	Third Party Joint Ventures [Member]	Common Stock [Member] Class S Shares [Member]	Common Stock [Member] Class I Shares [Member]	Common Stock [Member] Class T Shares [Member]	Common Stock [Member] Class D Shares [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit and Cumulative Distributions [Member]	Total Stockholders' Equity [Member]	Non-controlling Interests [Member] Third Party Joint Ventures [Member]	Non-controlling Interests [Member] BREIT OP Unitholders [Member]
Beginning Balance at Dec. 31, 2019	$ 10,614,648		$ 5,308	$ 4,743	$ 398	$ 847	$ 11,716,721	$ (1,422,885)	$ 10,305,132	$ 157,795	$ 151,721
Common stock issued	5,075,257		985	3,239	48	141	5,070,844		5,075,257
Offering costs	(97,799)						(97,799)		(97,799)
Distribution reinvestment	104,922		45	37	3	7	104,830		104,922
Common stock/units repurchased	(516,222)		(227)	(190)	(10)	(31)	(515,429)		(515,887)		(335)
Amortization of compensation awards	600			1			99		100		500
Net income (loss)	(1,216,450)							(1,200,087)	(1,200,087)	443	(16,806)
Distributions declared on common stock	(207,074)							(207,074)	(207,074)
Contributions from non-controlling interests	67,891									9,255	58,636
Distributions to and redemptions of non-controlling interests	(9,663)									(6,188)	(3,475)
Allocation to redeemable non-controlling interests	(508)	$ (500)					(508)		(508)
Ending Balance at Mar. 31, 2020	13,815,602		6,111	7,830	439	964	16,278,758	(2,830,046)	13,464,056	161,305	190,241
Beginning Balance at Dec. 31, 2019	10,614,648		5,308	4,743	398	847	11,716,721	(1,422,885)	10,305,132	157,795	151,721
Ending Balance at Dec. 31, 2020	16,183,951		7,029	9,270	459	1,241	19,059,045	(3,224,318)	15,852,726	143,253	187,972
Common stock issued	2,918,424		817	1,452	14	227	2,915,914		2,918,424
Offering costs	(107,294)						(107,294)		(107,294)
Distribution reinvestment	150,174		57	58	3	10	150,046		150,174
Common stock/units repurchased	(509,750)		(68)	(354)	(5)	(8)	(507,896)		(508,331)	(129)	(1,290)
Amortization of compensation awards	1,298			1			120		121		1,177
Net income (loss)	29,227							28,472	28,472	402	353
Distributions declared on common stock	(289,405)							(289,405)	(289,405)
Contributions from non-controlling interests	72,545									2,229	70,316
Distributions to and redemptions of non-controlling interests	(7,279)									(2,823)	(4,456)
Allocation to redeemable non-controlling interests	(2,775)	$ (2,800)					(2,775)		(2,775)
Ending Balance at Mar. 31, 2021	$ 18,439,116		$ 7,835	$ 10,427	$ 471	$ 1,470	$ 21,507,160	$ (3,485,251)	$ 18,042,112	$ 142,932	$ 254,072