Equity and Redeemable Non-controlling Interest - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Equity [Line Items]
Number of Shares, Authorized to issue, Total	10,100,000,000		10,100,000,000
Common stock repurchased	28,591,683		74,312,521
BREIT OP units repurchased	136,023		7,470,443
Stock repurchased, value in operating partnership unit	$ 299,100		$ 898,900
Non-controlling interests attributable to third party joint ventures	159,459		159,459		$ 157,795
Allocation adjustment amount between additional paid-in capital and redeemable non controlling interest	(206)	$ 361	302	$ 1,441
Third Party Joint Ventures [Member]
Equity [Line Items]
Non-controlling interests attributable to third party joint ventures	21,400		21,400
Allocation adjustment amount between additional paid-in capital and redeemable non controlling interest	$ 200		$ (300)