Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in goodwill for the three months ended March 31, 2024 and for the year ended December 31, 2023 were as follows (in thousands):

	March 31, 2024		December 31, 2023
Balance, beginning of period	$	598,629	$	598,853
Currency translation	(80)		(224)
Balance, end of period	$	598,549	$	598,629

Schedule of Finite-Lived Intangible Assets

Intangible assets as of March 31, 2024 and December 31, 2023 were comprised of the following (in thousands):

	March 31, 2024							December 31, 2023
	Weighted-Average Amortization Period (in years)	Cost		Accumulated Amortization		Net		Cost		Accumulated Amortization		Net
Amortizing intangible assets:
Product rights	6.2	$	1,207,469	$	(739,351)	$	468,118	$	1,198,971	$	(703,297)	$	495,674
Other intangible assets	3.1	111,800		(76,491)		35,309		111,800		(72,896)		38,904
Subtotal		1,319,269		(815,842)		503,427		1,310,771		(776,193)		534,578
In-process research and development		355,845		—		355,845		355,845		—		355,845
Total intangible assets		$	1,675,114	$	(815,842)	$	859,272	$	1,666,616	$	(776,193)	$	890,423

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table presents future amortization expense for the next five years and thereafter, excluding $355.8 million of in-process research and development (“IPR&D”) intangible assets (in thousands):

	Future Amortization
Remainder of 2024	$	119,432
2025	121,638
2026	73,115
2027	52,606
2028	33,263
2029	26,484
Thereafter	76,889
Total	$	503,427