CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
CURRENT ASSETS:
Cash and cash equivalents	$ 1,854,794	$ 981,898
Billed accounts receivable, less allowance for credit losses of $23,491 and $19,708, respectively	3,278,811	2,577,858
Unbilled accounts receivable, less allowance for credit losses of $1,636 and $1,508, respectively	136,617	123,197
Other receivables, less allowance for credit losses of $270 and $325, respectively	122,100	116,157
Inventories	104,804	84,066
Prepaid expenses and other	146,723	138,560
Costs and estimated earnings in excess of billings, less allowance for credit losses of $416 and $255, respectively	144,553	88,817
Total current assets	5,788,402	4,110,553
PROPERTY AND EQUIPMENT, NET	653,873	387,952
LEASE RIGHT-OF-USE ASSETS	299,638	322,922
GOODWILL	1,101,475	1,025,515
IDENTIFIABLE INTANGIBLE ASSETS, NET	534,580	485,168
DEFERRED TAX ASSETS	80,920	84,139
OTHER NONCURRENT ASSETS	28,918	24,920
Total assets	8,487,806	6,441,169
CURRENT LIABILITIES:
Current maturities of long-term debt	215	6,163
Accounts payable	771,906	696,348
Accrued compensation and benefits	403,471	291,722
Billings in excess of costs and estimated earnings and deferred revenue	3,231,104	2,120,262
Accrued self-insurance	40,141	42,973
Other current liabilities	321,927	236,382
Total current liabilities	4,768,764	3,393,850
LONG-TERM DEBT	53,849	139,063
LEASE LIABILITIES	273,969	302,590
DEFERRED TAX LIABILITIES	3,892	3,892
OTHER LONG-TERM LIABILITIES	170,063	153,000
Total liabilities	5,270,537	3,992,395
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, 5,923,156 and 5,946,145 shares, respectively	(517,499)	(496,006)
Additional paid-in capital	394,107	363,314
Retained earnings	3,340,250	2,581,055
Total stockholders' equity	3,217,269	2,448,774
Total liabilities and stockholders' equity	$ 8,487,806	$ 6,441,169

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.