Equity - Share Repurchase (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		15 Months Ended
	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020
Equity
Repurchased and retired (in shares)	2,374,092				2,626,022
Repurchased and retired	$ 26,746				$ 30,000
Average price (in dollars per share)	$ 11.27				$ 11.41
Treasury stock retirements (in shares)		0	207,382	0
Solaris LLC
Equity
Repurchased and retired (in shares)	2,374,092				2,626,022