Divestiture	6 Months Ended
Jun. 30, 2020
Discontinued Operations and Disposal Groups [Abstract]
Divestitures	DivestitureSale of Alternative Fuels DivisionEffective January 1, 2020, we sold our Alternative Fuels Division pursuant to an Asset Purchase Agreement with Cryogenic Industries, LLC. The upfront cash purchase price was $4.8 million, which consisted of an advance payment of $1.5 million received on December 31, 2019 and $3.5 million received on January 2, 2020, offset by a $0.2 million cash payment to the buyer in March 2020 in settlement of the final net working capital as defined in the asset purchase agreement. In addition, up to $0.5 million of the purchase price is subject to the achievement of certain milestones under an assigned contract through the period December 31, 2021. We recognized a pre-tax gain of $1.1 million, net of $1.3 million direct selling costs, on the sale of the business. The gain represents the difference between the purchase price and the carrying value of the business, which primarily included net working capital of $0.1 million and goodwill of $2.6 million. The Alternative Fuels Division was part of the Workforce Excellence segment.

Divestiture

6 Months Ended

Jun. 30, 2020

Discontinued Operations and Disposal Groups [Abstract]

DivestitureSale of Alternative Fuels DivisionEffective January 1, 2020, we sold our Alternative Fuels Division pursuant to an Asset Purchase Agreement with Cryogenic Industries, LLC. The upfront cash purchase price was $4.8 million, which consisted of an advance payment of $1.5 million received on December 31, 2019 and $3.5 million received on January 2, 2020, offset by a $0.2 million cash payment to the buyer in March 2020 in settlement of the final net working capital as defined in the asset purchase agreement. In addition, up to $0.5 million of the purchase price is subject to the achievement of certain milestones under an assigned contract through the period December 31, 2021. We recognized a pre-tax gain of $1.1 million, net of $1.3 million direct selling costs, on the sale of the business. The gain represents the difference between the purchase price and the carrying value of the business, which primarily included net working capital of $0.1 million and goodwill of $2.6 million. The Alternative Fuels Division was part of the Workforce Excellence segment.