Changes in the carrying amount of goodwill for the periods ended June 30, 2026 and December 31, 2025 by reportable segment are as follows (in thousands):


	Commercial Banking			Institutional Banking		Personal Banking			Total
Balances as of January 1, 2026	$	1,042,577		$	76,492	$	720,756		$	1,839,825
Acquisition of HTLF		(1,339	)		—		(892	)		(2,231	)
Balances as of June 30, 2026	$	1,041,238		$	76,492	$	719,864		$	1,837,594


Balances as of January 1, 2025	$	63,113		$	76,492	$	67,780		$	207,385
Acquisition of HTLF		979,464			—		652,976			1,632,440
Balances as of December 31, 2025	$	1,042,577		$	76,492	$	720,756		$	1,839,825

The following table lists the finite-lived intangible assets that continue to be subject to amortization as of June 30, 2026 and December 31, 2025 (in thousands):


	As of June 30, 2026
	Core Deposit Intangible Assets		Customer Relationships		Total
Gross carrying amount	$	481,294	$	124,085	$	605,379
Accumulated amortization		120,819		44,611		165,430
Net carrying amount	$	360,475	$	79,474	$	439,949


	As of December 31, 2025
	Core Deposit Intangible Assets		Customer Relationships		Total
Gross carrying amount	$	481,294	$	124,085	$	605,379
Accumulated amortization		81,203		37,307		118,510
Net carrying amount	$	400,091	$	86,778	$	486,869

Related to the acquisition of HTLF, the Company recognized an adjustment of $2.2 million to goodwill during the period ended June 30, 2026. During 2025, the Company recognized $1.6 billion of goodwill, a $474.1 million core deposit intangible asset, wealth customer list of $26.0 million, and purchased credit card relationships of $10.9 million. See Note 13, “Acquisition” for additional information.

On September 2, 2025, the Company acquired a healthcare savings account business, which included $32.5 million of deposits. The purchase resulted in recognition of a $4.8 million core deposit intangible asset.

The following table has the aggregate amortization expense recognized in each period (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
Aggregate amortization expense	$	23,460	$	25,268	$	46,920	$	42,750

The following table discloses the estimated amortization expense of intangible assets in future periods (in thousands):


For the six months ending December 31, 2026	$	46,199
For the year ending December 31, 2027		82,528
For the year ending December 31, 2028		70,461
For the year ending December 31, 2029		61,515
For the year ending December 31, 2030		52,901