Income Taxes	9 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income TaxesThe tax provision for interim periods is determined using the estimated annual effective consolidated tax rate, based on the current estimate of full-year earnings before taxes, adjusted for the impact of discrete quarterly items.The provision for income taxes was $12.0 million and $21.1 million for the three months ended September 30, 2021 and 2020, respectively, and the effective tax rate was 6.6% and 21.6%, respectively. The provision for income taxes was $73.0 million and $52.1 million for the nine months ended September 30, 2021 and 2020, respectively, and the effective tax rate was 12.9% and 18.2%, respectively. The reduction in effective tax rates for the three and nine months ended September 30, 2021 is the result of the Company's prepayment of future royalties from one of its subsidiaries, which resulted in a $20.4 million tax benefit.