Forward Air Corporation Annual report pursuant to Section 13 and 15(d)

Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 7,885	$ 2,668	$ 2,448
Charged to Costs and Expenses	1,075	5,900	567
Charged to Other Operating Revenue	11,347	7,943	4,751
Deductions	12,501	8,626	5,098
Balance at End of Period	7,806	7,885	2,668
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	1,734	1,268	1,316
Charged to Costs and Expenses	1,052	1,670	567
Charged to Other Operating Revenue	0	0	0
Deductions	1,258	1,204	615
Balance at End of Period	1,528	1,734	1,268
Allowance for revenue adjustments
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	1,526	1,005	737
Charged to Costs and Expenses	0	0	0
Charged to Other Operating Revenue	11,347	7,943	4,751
Deductions	11,243	7,422	4,483
Balance at End of Period	1,630	1,526	1,005
Deferred tax valuation allowance
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	4,625	395	395
Charged to Costs and Expenses	23	4,230	0
Charged to Other Operating Revenue	0	0	0
Deductions	0	0	0
Balance at End of Period	$ 4,648	$ 4,625	$ 395