Intangible Assets, Net - Summary (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Definite-Lived
Gross book value, beginning of period	$ 489,570
Accumulated amortization, beginning of period	252,822
Net book value, beginning of period	236,748
Additions	120,388
Intangible amortization	(30,219)
Gross book value, end of period	609,958
Accumulated amortization, end of period	283,041
Net book value, end of period	326,917
Indefinite-Lived
Net book value, beginning of period	43,516
Net book value, end of period	43,516
Total
Net book value, beginning of period	280,264
Additions	120,388
Intangible amortization	(30,219)
Net book value, end of period	$ 370,433