Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The provision for income taxes for the three months ended March 31, 2021 and 2020 was an expense of $50.7 million and $21.8 million, respectively. The effective income tax rate was 23.6% and of 22.5% for the three months ended March 31, 2021 and 2020, respectively. The quarter-over-quarter increase in the effective income tax rate was primarily due to the shifts in estimated geographical mix of earnings as well as the relative impact of tax benefits from stock-based compensation. The Company had gross unrecognized tax benefits of $125.0 million on March 31, 2021 and $127.1 million on December 31, 2020. It is reasonably possible that gross unrecognized tax benefits will decrease by approximately $8.9 million within the next twelve months due to the anticipated closure of audits and the expiration of certain statutes of limitation.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.