Transactions with Affiliates (Tables)

9 Months Ended

Sep. 30, 2021

Related Party Transactions [Abstract]

Activities with affiliates

Activities with affiliates were as follows for the periods indicated (in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Affiliate billings to us	$	1	$	(15)	$	13	$	17
Billings to affiliates	4		1		10		3
Rentals paid to affiliate	144		256		461		500