For each of the years ended June 30, 2026 and June 30, 2025, we have not recorded any goodwill impairments. Changes in the carrying amount of goodwill is comprised of the following for the year ended June 30, 2026 (in thousands):


	2026
	Sleep and Breathing Health		Residential Care Software		Total
Balance at the beginning of the period	$	883,578	$	2,163,102	$	3,046,680
Business acquisitions	213,994		6,968		220,962
Adjustment to fair values of preliminary purchase price allocations	1,971		—		1,971
Reclassification to assets held for sale(1)	—		(327,240)		(327,240)
Foreign currency translation adjustments	(6,568)		(26,230)		(32,798)
Balance at the end of the period	$	1,092,975	$	1,816,600	$	2,909,575

(1) As a result of the planned sale of the MatrixCare business, we allocated a portion of the Residential Care Software segment goodwill to assets held for sale. See Note 18 – Business Combinations and Divestitures for further information.

Other intangibles, net are comprised of the following as of June 30, 2026 and June 30, 2025 (in thousands):


	2026		2025
Developed/core product technology	$	351,846	$	396,242
Accumulated amortization	(200,355)		(315,032)
Developed/core product technology, net	151,491		81,210
Customer relationships	345,160		475,541
Accumulated amortization	(146,589)		(189,050)
Customer relationships, net	198,571		286,491
Other intangibles	271,448		267,499
Accumulated amortization	(168,773)		(170,339)
Other intangibles, net	102,675		97,160
Total other intangibles, net	$	452,737	$	464,861

Intangible assets consist of developed/core product technology, trade names, non-compete agreements, customer relationships, and patents, and we amortize them over the estimated useful life of the assets, generally between two years and fifteen years. There are no expected residual values related to these intangible assets.

Amortization expense related to acquired intangible assets for both the years ended June 30, 2026 and June 30, 2025 was $77 million. Amortization expense related to patents, included in other intangibles, for the years ended June 30, 2026 and June 30, 2025 was $11 million and $8 million, respectively. Total estimated annual amortization expense for the years ending June 30, 2027 through June 30, 2031, is shown below (in thousands):


	Fiscal Years Ending June 30
	2027		2028		2029		2030		2031
Estimated amortization expense	$	64,706	$	62,313	$	56,483	$	51,432	$	48,268