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Intangible Assets and Liabilities
 12 Months Ended
Dec. 31, 2024
Intangible Assets, Net (Excluding Goodwill) [Abstract]  
Intangible Assets and Liabilities Intangible Assets and Liabilities
The gross carrying amount and accumulated amortization (accretion) of our intangible assets and liabilities, other than goodwill, were as follows:
December 31, 2024December 31, 2023
In thousandsGrossAccumulated
(Amortization) Accretion		NetGrossAccumulated
(Amortization) Accretion		Net
Intangible Assets
Core-developed technology$48,048 $(36,661)$11,387 $502,010 $(499,571)$2,439 
Customer contracts and relationships315,744 (285,441)30,303 329,688 (287,653)42,035 
Trademarks and trade names30,793 (29,374)1,419 73,461 (71,740)1,721 
Other11,023 (11,023)— 12,019 (11,932)87 
Total intangible assets$405,608 $(362,499)$43,109 $917,178 $(870,896)$46,282 
Intangible Liabilities
Customer contracts and relationships$— $— $— $(23,900)$23,900 $— 

On March 1, 2024, we completed the acquisition of 100% of the shares Elpis2, Inc. (Elpis Squared), a privately held software and services company. The purchase resulted in the addition of intangible assets of $15.0 million including $12.5 million identified core-developed technology and $2.5 million of customer contracts and relationships. The core-developed technology and customer contract and relationships will be amortized over the weighted-average five-year and three-year useful lives, respectively, using the straight-line method. Refer to Note 5: Goodwill and Note 18: Business Combination for additional information.

Assumed intangible liabilities reflect the present value of the projected cash outflows for a then existing contract for which remaining costs were expected to exceed projected revenues.

Estimated future annual amortization is as follows:
Year Ending December 31,Estimated Annual Amortization
In thousands
2025$17,593 
202613,614 
20278,272 
20282,681 
2029576 
Thereafter373 
Total intangible assets subject to amortization$43,109 

We recognize all amortization expense within Amortization of intangible assets in the Consolidated Statements of Operations. These expenses relate to intangible assets acquired and liabilities assumed as part of business combinations.