Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Revenue	$ 558,273	$ 508,569	$ 523,118
Cost of services (exclusive of depreciation and amortization presented separately below)	385,692	356,536	374,992
Selling, general and administrative	108,738	93,143	88,663
Depreciation and amortization	17,232	19,461	18,985
Total operating expenses	511,662	469,140	482,640
Income from operations	46,611	39,429	40,478
Interest income	955	2,071	640
Interest expense	(1,634)	(514)	(792)
Income before income taxes	45,932	40,986	40,326
Provision for income tax expense	(9,068)	(7,331)	(8,744)
Net income	36,864	33,655	31,582
Other comprehensive income
Foreign currency translation adjustments	1,114	(1,623)	(2,234)
Unrealized gain / (loss) on cash flow hedging instruments, net of tax	775	(111)	515
Actuarial (loss) / gain on defined benefit plan	(312)	133	(31)
Total other comprehensive income / (loss)	1,577	(1,601)	(1,750)
Total comprehensive income	$ 38,441	$ 32,054	$ 29,832
Net income per share
Basic (in dollars per share)	$ 2.51	$ 1.90	$ 1.74
Diluted (in dollars per share)	$ 2.36	$ 1.84	$ 1.67
Weighted average common shares outstanding
Basic (in shares)	14,678	17,704	18,200
Diluted (in shares)	15,725	18,255	18,893