Schedule II-Valuation and Qualify Accounts

12 Months Ended

Dec. 31, 2021

Valuation And Qualifying Accounts [Abstract]

Schedule II-Valuation and Qualifying Accounts

Great Lakes Dredge & Dock Corporation
Schedule II—Valuation and Qualifying Accounts
For the Years Ended December 31, 2021, 2020 and 2019
(In thousands)
	Beginning Balance		Additions		Deductions			Ending balance
Description
Year ended December 31, 2019
Allowances deducted from assets to which they apply:
Allowances for doubtful accounts	$	200	$	364	$	—		$	564
Valuation allowance for deferred tax assets		4,786		—		(1,291	)		3,495
Total	$	4,986	$	364	$	(1,291	)	$	4,059
Year ended December 31, 2020
Allowances deducted from assets to which they apply:
Allowances for doubtful accounts	$	564	$	—	$	—		$	564
Valuation allowance for deferred tax assets		3,495		—		(1,022	)		2,473
Total	$	4,059	$	—	$	(1,022	)	$	3,037
Year ended December 31, 2021
Allowances deducted from assets to which they apply:
Allowances for doubtful accounts	$	564	$	—	$	—		$	564
Valuation allowance for deferred tax assets		2,473		14		—			2,487
Total	$	3,037	$	14	$	—		$	3,051