Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three months ended September 30, 2020 and 2019, the Company recorded an income tax benefit of $13,742 on pre-tax income from continuing operations of $2,836 and an income tax expense of $836 on pre-tax income from continuing operations of $4,590, respectively, for effective income tax rates of (484.6)% and 18.2%, respectively. For the nine months ended September 30, 2020 and 2019, the Company recorded an income tax benefit of $11,698 on pre-tax income from continuing operations of $11,845 and an income tax expense of $3,883 on pre-tax income from continuing operations of $21,656, respectively, for effective income tax rates of (98.8)% and 17.9%, respectively. The Company’s income tax benefit from continuing operations for the three- and nine-month periods ended September 30, 2020 included a discrete income tax benefit of $15,824 related to the disposition of the Test and Inspection Services business. In addition to the impact of discrete items, the Company's effective tax rate for the nine months ended September 30, 2020 differed from the federal statutory rate of 21% primarily due to state income taxes, nondeductible expenses, and global intangible low-taxed income (“GILTI”) inclusions. On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was enacted in response to the COVID-19 pandemic. The CARES Act contains several corporate income tax provisions, including providing for a five-year carryback of net operating losses (“NOL”) generated in tax years 2018 through 2020, removing the 80% taxable income limitation on utilization of those NOLs if carried back to prior tax years or utilized in tax years beginning before 2021, making remaining alternative minimum tax (“AMT”) credits immediately refundable, and temporarily relaxing the interest deductibility rules by raising the adjusted taxable income limitation from 30% to 50% for tax years 2019 and 2020. As of September 30, 2020, the Company has recorded an income tax receivable of $9,008 to reflect expected tax refunds of federal taxes paid within the five year NOL carryback period.

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.