REVENUE AND RECEIVABLES (Tables)

12 Months Ended

Dec. 31, 2021

REVENUE AND RECEIVABLES

Summary of contracts asset and liabilities

Contract assets and liabilities consisted of the following (amounts in thousands):

	December 31, 2021		December 31, 2020			$ Change	% Change
Contract asset – current	$	4,805	$	2,478	$	2,327	94	%
Contract asset – noncurrent		900		910		(10)	(1)	%
Contract liability – current		(25,332)		(18,544)		(6,788)	(37)	%
Contract liability – noncurrent		(81,391)		(2,193)		(79,198)	(3,611)	%
Net contract liability	$	(101,018)	$	(17,349)	$	(83,669)	(482)	%

Schedule of activity in allowances for credit losses

	Year ended December 31, 2021		Year ended December 31, 2020
Balance at beginning of period	$	12,121	$	12,724
Current period provision for expected losses		4,850		5,010
Write-offs charged against the allowance		(3,517)		(6,351)
Recoveries collected		431		738
Balance at end of period	$	13,885	$	12,121