Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Preferred stock, par share value (usd per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (shares)	50,000,000	50,000,000
Preferred stock, share issued (shares)	0	0
Common Class A
Common stock, par share value (usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (shares)	320,000,000	320,000,000
Common shares, outstanding (shares)	32,762,005	31,023,863
Common Class T
Common stock, par share value (usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (shares)	80,000,000	80,000,000
Common shares, outstanding (shares)	60,623,093	59,006,632