Subsequent Events - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions				1 Months Ended
	Apr. 29, 2020	Mar. 30, 2020	Feb. 27, 2020	Jul. 31, 2019	Jun. 30, 2019	Mar. 13, 2020	Mar. 01, 2020	Feb. 28, 2020	Jan. 31, 2020	Jan. 28, 2020	Dec. 31, 2019	Apr. 30, 2019	Dec. 31, 2018
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)												4,000,000
Average Net Proceeds per Share											$ 26.93		$ 25.17
Class FA
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)											7,400,000	7,400,000	3,400,000
Average Net Proceeds per Share											$ 27.35		$ 25.00
Class A
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)											94,660,000	94,660,000	94,660,000
Average Net Proceeds per Share											$ 26.59		$ 26.33
Class T
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)											658,620,000	658,620,000	662,620,000
Average Net Proceeds per Share											$ 26.78		$ 26.09
Class D
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)											94,660,000	94,660,000	94,660,000
Average Net Proceeds per Share											$ 26.36		$ 25.95
Class I
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)											94,660,000	94,660,000	94,660,000
Average Net Proceeds per Share											$ 26.75		$ 26.06
Subsequent Event [Member]
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)									100,000,000
Average Net Proceeds per Share						$ 27.30
Subsequent Event [Member] | Class FA
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)									7,400,000
Declared distribution (in dollars per share)	$ 0.104167	$ 0.104167	$ 0.104167
Average Net Proceeds per Share						27.62
Subsequent Event [Member] | Class A
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)									94,660,000
Declared distribution (in dollars per share)	0.104167	0.104167	0.104167
Average Net Proceeds per Share						26.82	$ 29.23	$ 29.25		$ 29.41
Subsequent Event [Member] | Class T
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)									558,620,000
Declared distribution (in dollars per share)	0.083333	0.083333	0.083333
Average Net Proceeds per Share						26.94	28.16	28.19		28.36
Subsequent Event [Member] | Class D
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)									94,660,000
Declared distribution (in dollars per share)	0.093750	0.09375	0.09375
Average Net Proceeds per Share						26.51	26.4	26.44		26.61
Subsequent Event [Member] | Class I
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)									94,660,000
Declared distribution (in dollars per share)	0.014167	0.104167	$ 0.104167
Average Net Proceeds per Share						$ 27.05	$ 26.99	$ 27		27.15
Subsequent Event [Member] | Common Class S- [Member]
Subsequent Event [Line Items]
Common stock, shares authorized (in shares)									100,000,000
Declared distribution (in dollars per share)	$ 0.014167	$ 0.104167
2019 Private Offering [Member] | Class FA
Subsequent Event [Line Items]
Number of shares offered in 2019 Private Offering				50,000,000
Sale of stock offering, minimum requirement					$ 2.0
2019 Private Offering [Member] | Subsequent Event [Member] | Class FA
Subsequent Event [Line Items]
Average Net Proceeds per Share										$ 27.64