Intangible Assets, Net (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Intangible Assets, Net

Below is a summary of intangible assets, net:

(in thousands)	June 30, 2021		December 31, 2020
Definite-lived intangible assets:
Investment contracts and other	$	609,958	$	489,570
Accumulated amortization	(272,650)		(252,822)
Definite-lived intangible assets, net	337,308		236,748
Indefinite-lived intangible assets	43,516		43,516
Total intangible assets, net	$	380,824	$	280,264

Schedule of Activity in Intangible Assets, Net

Activity in intangible assets, net was as follows: 

	Six Months Ended June 30,
(in thousands)	2021		2020
Intangible assets, net
Balance, beginning of period	$	280,264	$	310,391
Additions	120,388		—
Amortization	(19,828)		(15,066)
Balance, end of period	$	380,824	$	295,325

Schedule of Estimated Amortization Expense of Intangible Assets Succeeding Years

Definite-lived intangible asset amortization for the remainder of fiscal year 2021 and succeeding fiscal years is estimated as follows:

Fiscal Year	Amount (in thousands)
Remainder of 2021	20,782
2022	41,440
2023	40,778
2024	35,136
2025	30,368
2026 and thereafter	168,804
Total	$	337,308