Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s tax provision for interim periods is determined using an estimated annual effective tax rate, adjusted for discrete items arising in that quarter. In each quarter, the estimated annual effective tax rate is updated and a year to date adjustment is made to the provision. The Company’s quarterly effective tax rate can be subject to significant change due to the effect of discrete items arising in a given quarter. Income tax expense for the quarter ended March 31, 2021, was $4,615 for an effective tax rate of 23.0 percent. The effective tax rate differed from the 21 percent federal statutory rate on pretax income, primarily due to state taxes, nondeductible transaction costs, partially offset by state and federal tax credits and the deduction applicable to income derived from export activity. Income tax expense for the quarter ended March 31, 2020, was $3,224 for an effective tax rate of 24.7 percent. The effective tax rate differed from the 21 percent federal statutory rate on pretax income, primarily due to state income taxes, estimated increase in the Company’s valuation allowance related to state income attributes, and the discrete tax impact of vested share-based awards, partially offset by federal and state credits, and the deduction applicable to income derived from export activity.

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.