Revenues and Contract Balances (Tables)

6 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregated Revenues

Disaggregated revenues by contract type were as follows (in thousands):

	Three Months Ended December 31, 2023						Six Months Ended December 31, 2023
	Domestic		International		Total		Domestic		International		Total
Cost-plus-fee	$	1,102,474	$	—	$	1,102,474	$	2,236,909	$	—	$	2,236,909
Fixed-price	485,086		34,458		519,544		952,302		69,319		1,021,621
Time-and-materials	192,448		19,468		211,916		385,965		39,586		425,551
Total	$	1,780,008	$	53,926	$	1,833,934	$	3,575,176	$	108,905	$	3,684,081

	Three Months Ended December 31, 2022						Six Months Ended December 31, 2022
	Domestic		International		Total		Domestic		International		Total
Cost-plus-fee	$	953,344	$	—	$	953,344	$	1,888,090	$	—	$	1,888,090
Fixed-price	478,201		31,155		509,356		926,763		64,366		991,129
Time-and-materials	173,630		13,086		186,716		349,217		26,739		375,956
Total	$	1,605,175	$	44,241	$	1,649,416	$	3,164,070	$	91,105	$	3,255,175

Disaggregated revenues by customer type were as follows (in thousands):

	Three Months Ended December 31, 2023						Six Months Ended December 31, 2023
	Domestic		International		Total		Domestic		International		Total
Department of Defense	$	1,358,509	$	—	$	1,358,509	$	2,710,815	$	—	$	2,710,815
Federal civilian agencies	389,942		—		389,942		797,286		—		797,286
Commercial and other	31,557		53,926		85,483		67,075		108,905		175,980
Total	$	1,780,008	$	53,926	$	1,833,934	$	3,575,176	$	108,905	$	3,684,081

	Three Months Ended December 31, 2022						Six Months Ended December 31, 2022
	Domestic		International		Total		Domestic		International		Total
Department of Defense	$	1,160,060	$	—	$	1,160,060	$	2,255,380	$	—	$	2,255,380
Federal civilian agencies	399,768		—		399,768		823,855		—		823,855
Commercial and other	45,347		44,241		89,588		84,835		91,105		175,940
Total	$	1,605,175	$	44,241	$	1,649,416	$	3,164,070	$	91,105	$	3,255,175

Disaggregated revenues by prime vs. subcontractor were as follows (in thousands):

	Three Months Ended December 31, 2023						Six Months Ended December 31, 2023
	Domestic		International		Total		Domestic		International		Total
Prime contractor	$	1,588,589	$	47,788	$	1,636,377	$	3,189,680	$	96,059	$	3,285,739
Subcontractor	191,419		6,138		197,557		385,496		12,846		398,342
Total	$	1,780,008	$	53,926	$	1,833,934	$	3,575,176	$	108,905	$	3,684,081

	Three Months Ended December 31, 2022						Six Months Ended December 31, 2022
	Domestic		International		Total		Domestic		International		Total
Prime contractor	$	1,420,367	$	40,472	$	1,460,839	$	2,827,821	$	83,328	$	2,911,149
Subcontractor	184,808		3,769		188,577		336,249		7,777		344,026
Total	$	1,605,175	$	44,241	$	1,649,416	$	3,164,070	$	91,105	$	3,255,175

Disaggregated revenues by expertise or technology were as follows (in thousands):

	Three Months Ended December 31, 2023						Six Months Ended December 31, 2023
	Domestic		International		Total		Domestic		International		Total
Expertise	$	830,647	$	18,894	$	849,541	$	1,687,843	$	39,792	$	1,727,635
Technology	949,361		35,032		984,393		1,887,333		69,113		1,956,446
Total	$	1,780,008	$	53,926	$	1,833,934	$	3,575,176	$	108,905	$	3,684,081

	Three Months Ended December 31, 2022						Six Months Ended December 31, 2022
	Domestic		International		Total		Domestic		International		Total
Expertise	$	725,503	$	16,117	$	741,620	$	1,443,153	$	32,670	$	1,475,823
Technology	879,672		28,124		907,796		1,720,917		58,435		1,779,352
Total	$	1,605,175	$	44,241	$	1,649,416	$	3,164,070	$	91,105	$	3,255,175

Schedule of Contract Assets and Liabilities

Contract balances consisted of the following (in thousands):

Description of Contract Related Balance	Financial Statement Classification	December 31, 2023		June 30, 2023
Billed and billable receivables	Accounts receivable, net	$	792,647	$	763,547
Contract assets – current unbilled receivables	Accounts receivable, net	154,805		131,399
Contract assets – current costs to obtain	Prepaid expenses and other current assets	5,684		5,163
Contract assets – noncurrent unbilled receivables	Accounts receivable, long-term	12,409		11,857
Contract assets – noncurrent costs to obtain	Other long-term assets	10,598		8,294
Contract liabilities – current deferred revenue and other contract liabilities	Other accrued expenses and current liabilities	(128,861)		(138,469)
Contract liabilities – noncurrent deferred revenue and other contract liabilities	Other long-term liabilities	(5,393)		(5,522)