
	Connected Devices		Software and Services		Total
Balance, beginning of period	$	51,249	$	1,318,940	$	1,370,189
Goodwill acquired	4,581		524,733		529,314
Purchase accounting adjustments	—		63		63
Foreign currency translation adjustments	(114)		(625)		(739)
Balance, end of period	$	55,716	$	1,843,111	$	1,898,827


		June 30, 2026						December 31, 2025
	Useful Life	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortizable (definite-lived) intangible assets:
Developed technology	3 ‑ 8 years	$	262,122	$	(63,653)	$	198,469	$	183,122	$	(44,399)	$	138,723
Customer relationships	5 ‑ 10 years	68,231		(12,748)		55,483		41,329		(8,960)		32,369
Issued trademarks	3 ‑ 23 years	11,986		(5,377)		6,609		9,900		(3,856)		6,044
Issued patents	8 ‑ 26 years	3,002		(1,641)		1,361		3,017		(1,602)		1,415
Domain names	5 ‑ 10 years	4,568		(2,968)		1,600		3,043		(2,738)		305
Total amortizable		349,909		(86,387)		263,522		240,411		(61,555)		178,856
Non-amortizable (indefinite-lived) intangible assets:
In-process research and development (1)		16,600		—		16,600		16,600		—		16,600
Trademarks		1,068		—		1,068		1,068		—		1,068
Patents and trademarks pending		393		—		393		448		—		448
Total non-amortizable		18,061		—		18,061		18,116		—		18,116
Total intangible assets		$	367,970	$	(86,387)	$	281,583	$	258,527	$	(61,555)	$	196,972

(1)During the six months ended June 30, 2026, no in-process research and development costs were placed into service. During the six months ended June 30, 2025, approximately $15.3 million has been placed into service.

Amortization expense of intangible assets for the three and six months ended June 30, 2026 was $13.4 million and $24.9 million, respectively. Amortization expense of intangible assets for the three and six months ended June 30, 2025 was $6.7 million and $13.3 million, respectively. Estimated amortization for intangible assets with definite lives for the remaining six months of 2026, the next five years ended December 31, and thereafter, is as follows (in thousands):