Equity - Narrative (Details)										3 Months Ended			12 Months Ended		51 Months Ended	89 Months Ended
		Jun. 15, 2021 USD ($) shares	Mar. 25, 2021 USD ($) shares	Mar. 01, 2021 director shares	Jan. 22, 2021 USD ($) shares	Jul. 17, 2020 USD ($)	Jan. 15, 2020 USD ($) shares	May 01, 2019 USD ($) shares	Aug. 08, 2018 USD ($) tranche $ / shares shares	Dec. 31, 2021 USD ($) vote shares	Dec. 31, 2019 shares	Sep. 30, 2019 USD ($) shares	Dec. 31, 2021 USD ($) vote $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) vote shares	Dec. 31, 2021 USD ($) vote $ / shares shares	Sep. 20, 2020 USD ($)	Apr. 30, 2019 shares	Dec. 31, 2018 shares	Jun. 30, 2015 shares
Class of Stock [Line Items]
Proceeds from issuance of equity | $															$ 2,800,000,000
Common stock, number of shares outstanding (in shares)										324,638,112			324,638,112	230,320,668	324,638,112	324,638,112
Common stock issued | $	[1]									$ 325,000			$ 325,000	$ 230,000	$ 325,000	$ 325,000
Share Redemption Program
Class of Stock [Line Items]
Share redemption program, settlement due, period										3 days
Minimum balance of common stock | $										$ 2,500			$ 2,500		$ 2,500	$ 2,500
Minimum holding period for redemption of stock													1 year
Share Redemption Program | Maximum
Class of Stock [Line Items]
Maximum redemption percentage of weighted average shares outstanding												5.00%	5.00%
Common Stock
Class of Stock [Line Items]
Common stock, number of shares outstanding (in shares)										324,638,112	227,853,720		324,638,112	230,320,668	324,638,112	324,638,112			174,278,341
Common Stock | Share Redemption Program
Class of Stock [Line Items]
Stock redeemed during period (in shares)													2,232,476	1,841,887		28,304,928
Stock redeemed, value | $																$ 265,500,000
Weighted average price per share (in usd per share) | $ / shares													$ 9.03	$ 9.01		$ 9.38
Primary offering
Class of Stock [Line Items]
Stock issued (shares)																				43,772,611
Authorized issuances under Company's follow-on offering that have been suspended | $																	$ 2,000,000,000
Follow-on Offering
Class of Stock [Line Items]
Authorized issuances under Company's follow-on offering that have been suspended | $																	2,200,000,000
Distribution Reinvestment Plan
Class of Stock [Line Items]
Authorized issuances under Company's follow-on offering that have been suspended | $						$ 100,000,000											$ 200,000,000
Sale of stock, offering termination, prior written notice period						10 days
Common stock issued | $										$ 341,100,000			$ 341,100,000	$ 318,200,000	$ 341,100,000	$ 341,100,000
Class T
Class of Stock [Line Items]
Number of votes per share | vote										1			1		1	1
Common stock, number of shares outstanding (in shares)										565,265			565,265	558,107	565,265	565,265
Class S
Class of Stock [Line Items]
Number of votes per share | vote										1			1		1	1
Common stock, number of shares outstanding (in shares)										1,800			1,800	1,800	1,800	1,800
Class D
Class of Stock [Line Items]
Number of votes per share | vote										1			1		1	1
Common stock, number of shares outstanding (in shares)										42,013			42,013	41,095	42,013	42,013
Class I
Class of Stock [Line Items]
Number of votes per share | vote										1			1		1	1
Common stock, number of shares outstanding (in shares)										1,911,731			1,911,731	1,896,696	1,911,731	1,911,731
Class A
Class of Stock [Line Items]
Number of votes per share | vote										1			1		1	1
Common stock, number of shares outstanding (in shares)										24,509,573			24,509,573	24,325,680	24,509,573	24,509,573
Class AA
Class of Stock [Line Items]
Number of votes per share | vote										1			1		1	1
Common stock, number of shares outstanding (in shares)										47,592,118			47,592,118	47,304,097	47,592,118	47,592,118
Class AAA
Class of Stock [Line Items]
Number of votes per share | vote										1			1		1	1
Common stock, number of shares outstanding (in shares)										926,936			926,936	920,920	926,936	926,936
Class E
Class of Stock [Line Items]
Number of votes per share | vote										1			1		1	1
Common stock, number of shares outstanding (in shares)										249,088,676			249,088,676	155,272,273	249,088,676	249,088,676
Class E | 2021 Restricted Stock Units | Award Date Two
Class of Stock [Line Items]
Vesting installment (percent)			25.00%
Number of shares contingently receivable for each RSU (share)			1
Class E | Share Redemption Program
Class of Stock [Line Items]
Excess of quarterly cap limitation (in shares)												2,872,488
Excess of quarterly cap limitation | $												$ 27,400,000
Redemption percentage weighted average shares submitted, percentage (percent)											25.00%
Class E | Primary offering
Class of Stock [Line Items]
Stock issued (shares)				93,457,668														174,981,547
Series A Preferred Shares | Series A Purchase Agreement
Class of Stock [Line Items]
Aggregate number of shares purchased (shares)									10,000,000
Stock price (in usd per share) | $ / shares									$ 25.00
Number of tranches | tranche									2
Shares issued (shares)									5,000,000
Total purchase price | $									$ 125,000,000
Transaction fees (percent)									3.50%
Reimbursable transaction related expenses | $									$ 400,000
Restricted period before transferring shares									5 years
Quarterly distribution as a percentage of applicable varying rate (percent)									25.00%
Redemption price per share (in usd per share) | $ / shares									$ 25.00
Series A Preferred Shares | Series A Purchase Agreement | Advisor
Class of Stock [Line Items]
Reimbursable transaction related expenses | $									$ 200,000
Series A Preferred Shares | Series A Purchase Agreement | After First Triggering Event but Before Reset Date
Class of Stock [Line Items]
Redemption fee (percent)									1.50%
Series A Preferred Shares | Preferred Stock First Issuance
Class of Stock [Line Items]
Aggregate number of shares purchased (shares)									5,000,000
Shares issued (shares)									5,000,000
Conversion period from issuance									5 years
Series A Preferred Shares | Preferred Stock First Issuance | After First Triggering Event but Before Reset Date
Class of Stock [Line Items]
Redemption period									5 years
Series A Preferred Shares | Preferred Stock Secondary Issuance
Class of Stock [Line Items]
Aggregate number of shares purchased (shares)									5,000,000
Total purchase price | $									$ 125,000,000
Conversion period from issuance									5 years
Restricted Stock Units (RSUs)
Class of Stock [Line Items]
Total compensation expense | $													$ 7,500,000	$ 5,200,000
Restricted Stock Units (RSUs) | 2019 Restricted Stock Units
Class of Stock [Line Items]
Settlement right								1
Restricted shares issued (shares)								1,009,415
Vesting installment (percent)								25.00%
Fair value of grants issued | $								$ 9,700,000
Costs not yet recognized | $										$ 13,100,000			$ 13,100,000		$ 13,100,000	$ 13,100,000
Restricted Stock Units (RSUs) | 2020 Restricted Stock Units
Class of Stock [Line Items]
Restricted shares issued (shares)							589,248						1,619,255	589,248
Vesting installment (percent)							25.00%
Fair value of grants issued | $							$ 5,500,000
Restricted Stock Units (RSUs) | 2021 Restricted Stock Units | Award Date One
Class of Stock [Line Items]
Restricted shares issued (shares)					1,071,347
Fair value of grants issued | $					$ 9,600,000
Restricted Stock Units (RSUs) | 2021 Restricted Stock Units | Award Date Two
Class of Stock [Line Items]
Restricted shares issued (shares)			547,908
Fair value of grants issued | $			$ 4,900,000
Restricted Stock Units (RSUs) | Class E | Common Stock | 2020 Restricted Stock Units
Class of Stock [Line Items]
Number of shares contingently receivable for each RSU (share)							1
Restricted Stock Units (RSUs) | Class E | Common Stock | 2021 Restricted Stock Units
Class of Stock [Line Items]
Vesting installment (percent)					33.33%
Number of shares contingently receivable for each RSU (share)					1
Restricted Stock
Class of Stock [Line Items]
Fair value of grants issued | $		$ 400,000
Restricted Stock | Share-based Payment Arrangement, Nonemployee
Class of Stock [Line Items]
Restricted shares issued (shares)		49,614		3,901
Number of former directors | director				3
Restricted Stock | Share-based Payment Arrangement, Nonemployee | Share-based Payment Arrangement, Tranche One
Class of Stock [Line Items]
Vesting installment (percent)		50.00%
Restricted Stock | Share-based Payment Arrangement, Nonemployee | Share-based Payment Arrangement, Tranche Two
Class of Stock [Line Items]
Vesting period		1 year
Restricted Stock | Maximum
Class of Stock [Line Items]
Recognition period for unrecognized expense													4 years
Restricted Stock | Minimum
Class of Stock [Line Items]
Recognition period for unrecognized expense													2 years

[1] See Note 9, Equity, for the number of shares outstanding of each class of common stock as of December 31, 2021.