Revenues and Contract Balances (Tables)

6 Months Ended

Dec. 31, 2024

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, 2024						Six Months Ended December 31, 2024
	Domestic		International		Total		Domestic		International		Total
Cost-plus-fee	$	1,240,213	$	—	$	1,240,213	$	2,520,223	$	—	$	2,520,223
Fixed-price	564,784		38,075		602,859		1,004,024		74,091		1,078,115
Time-and-materials	234,159		22,578		256,737		511,230		47,130		558,360
Total	$	2,039,156	$	60,653	$	2,099,809	$	4,035,477	$	121,221	$	4,156,698

	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

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

	Three Months Ended December 31, 2024						Six Months Ended December 31, 2024
	Domestic		International		Total		Domestic		International		Total
Department of Defense	$	1,578,733	$	—	$	1,578,733	$	3,113,266	$	—	$	3,113,266
Federal civilian agencies	433,691		—		433,691		873,062		—		873,062
Commercial and other	26,732		60,653		87,385		49,149		121,221		170,370
Total	$	2,039,156	$	60,653	$	2,099,809	$	4,035,477	$	121,221	$	4,156,698

	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

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

	Three Months Ended December 31, 2024						Six Months Ended December 31, 2024
	Domestic		International		Total		Domestic		International		Total
Prime contractor	$	1,808,106	$	53,992	$	1,862,098	$	3,634,869	$	107,648	$	3,742,517
Subcontractor	231,050		6,661		237,711		400,608		13,573		414,181
Total	$	2,039,156	$	60,653	$	2,099,809	$	4,035,477	$	121,221	$	4,156,698

	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

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

	Three Months Ended December 31, 2024						Six Months Ended December 31, 2024
	Domestic		International		Total		Domestic		International		Total
Expertise	$	895,890	$	30,010	$	925,900	$	1,852,386	$	61,779	$	1,914,165
Technology	1,143,266		30,643		1,173,909		2,183,091		59,442		2,242,533
Total	$	2,039,156	$	60,653	$	2,099,809	$	4,035,477	$	121,221	$	4,156,698

	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

Schedule of Contract Assets and Liabilities

Contract balances consisted of the following (in thousands):

Description of Contract Related Balance	Financial Statement Classification	December 31, 2024		June 30, 2024
Billed and billable receivables	Accounts receivable, net	$	931,059	$	885,552
Contract assets – current unbilled receivables	Accounts receivable, net	269,624		145,759
Contract assets – current costs to obtain	Prepaid expenses and other current assets	6,831		6,142
Contract assets – noncurrent unbilled receivables	Accounts receivable, long-term	15,065		13,311
Contract assets – noncurrent costs to obtain	Other long-term assets	14,669		12,310
Contract liabilities – current deferred revenue and other contract liabilities	Other accrued expenses and current liabilities	(135,641)		(139,745)
Contract liabilities – noncurrent deferred revenue and other contract liabilities	Other long-term liabilities	(4,292)		(4,607)