The following table summarizes changes in goodwill during the years presented below:


	Year Ended June 30,
	2025		2026
Balance at beginning of year	$	108,937	$	343,100
Additions attributable to acquisitions	234,237		35,806
Measurement period adjustments	(74)		58
Balance at end of year	$	343,100	$	378,964

Refer to Note 7 for further details on acquisition activity during the years ended June 30, 2025 and 2026.

The Company’s amortizable intangible assets and estimated useful lives were as follows:


	June 30,				Weighted average useful life (years)
	2025		2026
Proprietary technology	$	122,529	$	134,129	6.4
Client relationships	26,000		29,200		7.1
Non-solicitation agreements	4,000		4,000		3.7
Trade names	3,740		3,740		5.0
Total	156,269		171,069
Accumulated amortization	(63,598)		(84,929)
Intangible assets, net	$	92,671	$	86,140

Amortization expense for acquired intangible assets was $10,436, $19,120 and $21,331 for the years ended June 30, 2024, 2025 and 2026, respectively, and is included in Cost of revenues and General and administrative.

Future amortization expense for acquired intangible assets was as follows as of June 30, 2026:


Fiscal 2027	$	21,216
Fiscal 2028	19,351
Fiscal 2029	15,885
Fiscal 2030	13,998
Fiscal 2031	13,004
Thereafter	2,686
Total	$	86,140