Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2021

Revenue Recognition [Abstract]

Contract with Customer, Asset and Liability [Table Text Block]

Contract Assets

The following table presents a reconciliation of our contract assets:

	Year ended December 31,
	2021		2020
	(Thousands)
Balance at beginning of period	$	3,395	$	554
Revenue recognized in excess of amounts invoiced	4,548		2,841
Balance at end of period	$	7,943	$	3,395

Contract Liabilities

The following table presents a reconciliation of our contract liabilities:

	Year ended December 31,
	2021		2020
	(Thousands)
Balance at beginning of period	$	4,610	$	5,464
Recognized in Revenue	(938)		(854)
Balance at end of period	$	3,672	$	4,610

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

The following table presents the amount of the contract liabilities balance expected to be recognized as revenue when performance obligations are satisfied and the transaction price allocated to the remaining performance obligations under certain contracts as of December 31, 2021.

	Contract Liabilities		Remaining Performance Obligations
	(Thousands)
2022 (one year)	$	1,029	$	418,597
2023 (one year)	1,120		383,164
2024 (one year)	1,218		338,118
2025 (one year)	305		331,136
2026 (one year)	—		323,632
Thereafter	—		2,522,750
Total	$	3,672	$	4,317,397