Share-Based Compensation - OP Units Activity (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($) shares	Dec. 31, 2020 USD ($)
Time-Based OP Units
Number of Units
Beginning balance (in shares)	93,180
Granted (in shares)	78,335
Vested (in shares)	(41,922)
Forfeited (in shares)	0
Ending balance (in shares)	129,593
Nonvested shares, aggregate intrinsic value | $	$ 4,900	$ 3,500
Shares vested, but not released (in shares)	59,121
Shares vested, but not released, aggregate intrinsic value | $	$ 2,200
Total outstanding awards (in shares)	188,714
Total outstanding awards, aggregate intrinsic value | $	$ 7,100
Market-Based OP Units
Number of Units
Beginning balance (in shares)	178,865
Granted (in shares)	198,007
Vested (in shares)	0
Forfeited (in shares)	0
Ending balance (in shares)	376,872
Nonvested shares, aggregate intrinsic value | $	$ 14,300	$ 6,700
Shares vested, but not released (in shares)	0
Shares vested, but not released, aggregate intrinsic value | $	$ 0
Total outstanding awards (in shares)	376,872
Total outstanding awards, aggregate intrinsic value | $	$ 14,300