CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents	$ 415,583	$ 205,150
Billed accounts receivable, less allowance for credit losses of $15,280 and $11,926, respectively	1,730,960	1,318,926
Unbilled accounts receivable, less allowance for credit losses of $953 and $850, respectively	89,332	72,774
Other receivables, less allowance for credit losses of $515 and $522, respectively	135,323	166,319
Inventories	55,680	65,538
Prepaid expenses and other	36,087	54,309
Costs and estimated earnings in excess of billings, less allowance for credit losses of $200 and $79, respectively	73,934	28,084
Total current assets	2,536,899	1,911,100
PROPERTY AND EQUIPMENT, NET	250,150	208,568
LEASE RIGHT-OF-USE ASSET	225,301	205,712
GOODWILL	875,193	666,834
IDENTIFIABLE INTANGIBLE ASSETS, NET	456,459	280,397
DEFERRED TAX ASSETS	50,234	17,723
OTHER NONCURRENT ASSETS	18,529	15,245
Total assets	4,412,765	3,305,579
CURRENT LIABILITIES:
Current maturities of long-term debt	6,046	4,867
Accounts payable	603,546	419,962
Accrued compensation and benefits	258,174	169,136
Billings in excess of costs and estimated earnings and deferred revenue	1,197,532	909,538
Accrued self-insurance	36,924	27,774
Other current liabilities	326,921	189,928
Total current liabilities	2,429,143	1,721,205
LONG-TERM DEBT	62,315	39,345
LEASE LIABILITIES	208,268	188,136
DEFERRED TAX LIABILITIES	1,120	1,120
OTHER LONG-TERM LIABILITIES	124,197	77,944
Total liabilities	2,825,043	2,027,750
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Preferred stock, $.01 par, 5,000,000 shares authorized, none issued and outstanding
Common stock, $.01 par, 102,969,912 shares authorized, 41,123,365 and 41,123,365 shares issued, respectively	411	411
Treasury stock, at cost, 5,530,807 and 5,438,625 shares, respectively	(256,775)	(209,807)
Additional paid-in capital	350,182	339,562
Retained earnings	1,493,904	1,147,663
Total stockholders' equity	1,587,722	1,277,829
Total liabilities and stockholders' equity	$ 4,412,765	$ 3,305,579

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).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.