Statement of Member's Equity (Unaudited) - USD ($) $ in Thousands	Total	MEMBER'S CAPITAL	RETAINED EARNINGS
Balance at beginning and end of period at Dec. 31, 2019		$ 1,073,892	$ 79,417
Net income	$ 111,829		111,829
Cash distributions to parent	(124,000)		(124,000)
Balance at end of period at Sep. 30, 2020	1,141,138		67,246
Balance at beginning and end of period at Jun. 30, 2020		1,073,892	66,706
Net income	36,540		36,540
Cash distributions to parent			(36,000)
Balance at end of period at Sep. 30, 2020	1,141,138		67,246
Balance at beginning and end of period at Dec. 31, 2020	1,140,395	1,073,892	66,503
Net income	101,574		101,574
Cash distributions to parent	(133,000)		(133,000)
Balance at end of period at Sep. 30, 2021	1,108,969		35,077
Balance at beginning and end of period at Jun. 30, 2021		$ 1,073,892	38,043
Net income	31,034		31,034
Cash distributions to parent			(34,000)
Balance at end of period at Sep. 30, 2021	$ 1,108,969		$ 35,077