Intangible Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2022

Intangible Assets, Net (Excluding Goodwill) [Abstract]

Schedule of Intangible Assets by Major Class

The gross carrying amount and accumulated amortization (accretion) of our intangible assets and liabilities, other than goodwill, were as follows:

	March 31, 2022						December 31, 2021
In thousands	Gross		Accumulated (Amortization) Accretion		Net		Gross		Accumulated (Amortization) Accretion		Net
Intangible Assets
Core-developed technology	$	503,866	$	(491,687)	$	12,179	$	505,429	$	(491,047)	$	14,382
Customer contracts and relationships	333,023		(262,332)		70,691		336,421		(261,043)		75,378
Trademarks and trade names	73,935		(71,607)		2,328		74,551		(72,133)		2,418
Other	12,020		(11,704)		316		12,021		(11,670)		351
Total intangible assets	$	922,844	$	(837,330)	$	85,514	$	928,422	$	(835,893)	$	92,529
Intangible Liabilities
Customer contracts and relationships	$	(23,900)	$	23,556	$	(344)	$	(23,900)	$	23,441	$	(459)

Summary of Intangible Asset Account Activity

A summary of intangible assets and liabilities activity is as follows:

	Three Months Ended March 31,
In thousands	2022		2021
Intangible assets, gross beginning balance	$	928,422	$	1,000,037
Effect of change in exchange rates	(5,578)		(16,404)
Intangible assets, gross ending balance	$	922,844	$	983,633
Intangible liabilities, gross beginning balance	$	(23,900)	$	(23,900)
Effect of change in exchange rates	—		—
Intangible liabilities, gross ending balance	$	(23,900)	$	(23,900)

Schedule of Intangible Assets, Future Amortization Expense

Estimated future annual amortization (accretion) is as follows:

Year Ending December 31,	Amortization		Accretion		Estimated Annual Amortization, net
In thousands
2022 (amount remaining at March 31, 2022)	$	19,936	$	(344)	$	19,592
2023	19,203		—		19,203
2024	15,223		—		15,223
2025	14,448		—		14,448
2026	10,398		—		10,398
Thereafter	6,306		—		6,306
Total intangible assets subject to amortization (accretion)	$	85,514	$	(344)	$	85,170