CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024
Current Assets:
Cash and cash equivalents	$ 6,981	$ 4,960	$ 4,056
Restricted cash	19,907	13,857	712
Contract receivables, net	212,829	256,923
Contract assets	236,227	188,941
Prepaid expenses and other assets	22,148	21,133
Income tax receivable	8,136	6,260
Total Current Assets	506,228	492,074
Property and Equipment, net	62,094	66,503
Other Assets:
Goodwill	1,253,025	1,248,855
Other intangible assets, net	95,618	111,701
Operating lease - right-of-use assets	111,701	115,531
Deferred tax assets	13,234	1,603
Other assets	32,091	30,086
Total Assets	2,073,991	2,066,353
Current Liabilities:
Accounts payable	123,835	159,522
Contract liabilities	23,913	24,580
Operating lease liabilities	20,708	20,721
Finance lease liabilities	2,657	2,612
Accrued salaries and benefits	90,194	105,773
Accrued subcontractors and other direct costs	48,383	49,271
Accrued expenses and other current liabilities	83,809	86,701
Total Current Liabilities	393,499	449,180
Long-term Liabilities:
Long-term debt	462,319	411,743
Operating lease liabilities - non-current	148,631	155,935
Finance lease liabilities - non-current	9,921	11,261
Other long-term liabilities	59,229	55,775
Total Liabilities	1,073,599	1,083,894
Commitments and Contingencies (Note 14)
Stockholders’ Equity:
Preferred stock, par value $.001 per share; 5,000,000 shares authorized; none issued
Common stock, par value $.001; 70,000,000 shares authorized; 24,336,393 and 24,186,962 shares issued at June 30, 2025 and December 31, 2024, respectively; 18,428,490 and 18,666,290 shares outstanding at June 30, 2025 and December 31, 2024, respectively	24	24
Additional paid-in capital	454,425	443,463
Retained earnings	920,135	874,772
Treasury stock, 5,907,903 and 5,520,672 shares at June 30, 2025 and December 31, 2024, respectively	(361,891)	(320,054)
Accumulated other comprehensive loss	(12,301)	(15,746)
Total Stockholders’ Equity	1,000,392	982,459	$ 943,325
Total Liabilities and Stockholders’ Equity	$ 2,073,991	$ 2,066,353

Represents accrued subcontractor and other direct costs.

No definition available.

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Namespace Prefix:	icfi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).