Share-Based Compensation	6 Months Ended
Share-Based Compensation	Jun. 30, 2020
Share Based Compensation [Abstract]
Disclosure Of Compensation Related Costs Share Based Payments [Text Block]	Note 8 – Share-Based Compensation The Company recognized the following share-based compensation expense in its Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2020 and 2019: Three Months Ended Six Months Ended June 30, June 30, 2020 2019 2020 2019 Stock options $ 353 $ 173 $ 785 $ 433 Non-vested restricted stock awards and restricted stock units 1,259 440 2,523 1,138 Non-elective and elective 401(k) matching contribution in stock 1,162 — 1,162 — Employee stock purchase plan — 24 — 47 Director stock ownership plan 54 23 94 54 Performance stock units 280 — 280 — Annual incentive plan (117) — 2,829 — Total share-based compensation expense $ 2,991 $ 660 $ 7,673 $ 1,672 Share-based compensation expense is recorded in SG&A, except for approximately $ 0.3 million and $ 0.8 million for the three and six months ended June 30, 2020, respectively, and less than $ 0.1 million for the six months ended June 30, 2019, recorded within Combination, integration and other acquisition-related expenses. The increase in total share-based compensation expense for the six months ended June 30, 2020 includes performance stock units, annual incentive plan accruals, and non-elective and elective 401(k) matching contributions in stock as components of share-based compensation beginning in 2020, described further below. Stock Options During the first quarter of 2020, the Company granted stock options under its long-term incentive plan (“LTIP”) that are subject only to time-based vesting over a three -year period. For the purposes of determining the fair value of stock option awards, the Company used a Black-Scholes option pricing model and the assumptions set forth in the table below: Number of options granted 49,115 Dividend yield 0.99 % Expected volatility 31.57 % Risk-free interest rate 0.36 % Expected term (years) 4.0 The fair value of these options is amortized on a straight -line basis over the vesting period. As of June 30, 2020, unrecognized compensation expense related to all stock options granted was $ 2.2 million, to be recognized over a weighted average remaining period of 2.2 years. Restricted Stock Awards and Restricted Stock Units During the six months ended June 30, 2020, the Company granted 27,137 non-vested restricted shares and 5,804 non-vested restricted stock units under its LTIP , subject to time-based vesting, generally over a three-year period. The fair value of these grants is based on the trading price of the Company’s common stock on the date of grant. The Company adjusts the grant date fair value of these awards for expected forfeitures based on historical experience As of June 30, 2020, unrecognized compensation expense related to the non-vested restricted shares was $ 6.7 million, to be recognized over a weighted average remaining period of 1.9 years, and unrecognized compensation expense related to non-vested restricted stock units was $ 1.1 million, to be recognized over a weighted average remaining period of 2.3 years. Performance Stock Units In March 2020, the Company included performance -dependent stock awards (“PSUs”) as a component of its LTIP, which will be settled in a certain number of shares subject to market -based and time-based vesting conditions. The number of fully vested shares that may ultimately be issued as settlement for each award may range from 0 % up to 200 % of the target award, subject to the achievement of the Company’s total shareholder return (“TSR”) relative to the performance of the Company’s peer group, the S&P Midcap 400 Materials group. The service period required for the PSUs is three years and the TSR measurement period for the PSUs is from January 1, 2020 through December 31, 2022. Compensation expense for PSUs is measured based on their grant date fair value and is recognized on a straight-line basis over the three-year vesting period. The grant-date fair value of the PSUs was estimated using a Monte Carlo simulation on the grant date and using the following assumptions: (i) a risk-free rate of 0.28 %; (ii) an expected term of 3.0 years; and (iii) a three-year daily historical volatility for each of the companies in the peer group, including Quaker Houghton. As of June 30, 2020, the Company estimates that it will issue approximately 25,500 fully vested shares as of the settlement date of the award based on the conditions of the PSUs and Company’s closing stock price on June 30, 2020. As of June 30, 2020, there was approximately $ 3.1 million of total unrecognized compensation cost related to PSUs which the Company expects to recognize over a weighted-average period of 2.7 years. Annual Incentive Plan The Company maintains an Annual Incentive Plan (“AIP”), which may be settled in cash or a certain number of shares subject to performance-based and time-based vesting conditions. It is the Company’s current intention to settle the 2020 AIP in shares, and therefore, expense associated with the AIP in 2020 will be recorded as a component of share-based compensation expense. The number of fully vested shares that may ultimately be issued as settlement for each award is subject to the achievement of the Company’s performance against certain internal financial and non-financial metrics and approval by the Company’s Compensation Committee. Compensation expense for the AIP is measured based on the estimated total value of the award. The number of shares that will ultimately be issued under the AIP award will be equal to final value of the award converted into a number of shares based on the trading price of the Company’s common stock on the date of settlement. As of June 30, 2020, the Company estimates that it will issue approximately 39,000 fully vested shares as of the settlement date of the award based on the conditions of the AIP, the Company’s projected performance against its performance metrics and Company’s closing stock price on June 30, 2020. Defined Contribution Plan The Company has a 401(k) plan with an employer match covering a majority of its U.S. employees. The Company matches 50 % of the first 6 % of compensation that is contributed to the plan, with a maximum matching contribution of 3 % of compensation. Additionally, the plan provides for non-elective nondiscretionary contributions on behalf of participants who have completed one year of service equal to 3 % of the eligible participant's compensation. The Company’s matching contributions and non-elective contributions may be made in cash or in fully vested shares of the Company’s common stock. Beginning in April 2020, the Company began matching both non-elective and elective 401(k) contributions in fully vested shares of its common stock rather than cash. For the three and six months ended June 30, 2020, total contributions were $ 1.2 million.