Consolidated income tax provision (benefit) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Summary of consolidated income tax provision (benefit)
Current income taxes		$ (480)	$ 519
Deferred Income Tax Expense (Benefit)		21,391	(22,101)
Income tax provision (benefit)	$ 21,200	$ 20,911	$ (21,582)