Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Revenue	$ 508,569	$ 523,118	$ 492,851
Cost of services (exclusive of depreciation and amortization presented separately below)	356,536	374,992	373,973
Selling, general and administrative	93,143	88,663	80,153
Depreciation and amortization	19,461	18,985	18,100
Total operating expenses	469,140	482,640	472,226
Income from operations	39,429	40,478	20,625
Interest income	2,071	640	43
Interest expense	(514)	(792)	(1,289)
Income before income taxes	40,986	40,326	19,379
Provision for income tax (expense) / benefit	(7,331)	(8,744)	2,077
Net income	33,655	31,582	21,456
Other comprehensive income / (loss)
Foreign currency translation adjustments	(1,623)	(2,234)	(2,281)
Unrealized (loss) / gain on cash flow hedging instruments, net of tax	(111)	515	(323)
Actuarial gain / (loss) on defined benefit plan	133	(31)	440
Total other comprehensive loss	(1,601)	(1,750)	(2,164)
Total comprehensive income	$ 32,054	$ 29,832	$ 19,292
Net income per share
Basic (in dollars per share)	$ 1.90	$ 1.74	$ 1.18
Diluted (in dollars per share)	$ 1.84	$ 1.67	$ 1.15
Weighted average common shares outstanding
Basic (in shares)	17,704	18,200	18,232
Diluted (in shares)	18,255	18,893	18,724