On December 12, 2018, our Board of Directors authorized a share repurchase program of $100 million, which as of June 30, 2021, had $61.4 million remaining under the plan. On March 16, 2020, the Company suspended share repurchases under the program in order to preserve liquidity due to the COVID- 19 pandemic. During the six months ended June 30, 2020, the Company repurchased 0.7 million shares, at a total cost, including brokerage fees, of $11.1 million, for an average repurchase price per share of $16.29. There were no share repurchases for the three months ended June 30, 2021 and 2020 and for the six months ended June 30, 2021.

The dividends declared by the Board of Directors and reflected in the periods presented are:

On March 25, 2020, the Company announced that the cash dividend program has been suspended to help mitigate the financial impact of the COVID-19 pandemic.

We account for share-based awards exchanged for employee services in accordance with the authoritative accounting guidance for share-based payments. Under the guidance, share-based compensation expense is measured at the grant date, based on the estimated fair value of the award, and is recognized as expense, net of estimated forfeitures, over the employee's requisite service period.

The following table provides classification detail of the total costs related to our share-based employee compensation plans reported in our condensed consolidated statements of operations.

Our stock incentive plan provides for the issuance of Performance Stock Unit ("PSU") grants which may be earned, in whole or in part, upon passage of time and the attainment of performance criteria. We periodically review our estimates of performance against the defined criteria to assess the expected payout of each outstanding PSU grant and adjust our stock compensation expense accordingly.

The PSU grants awarded in fourth quarter 2017 and 2016 vested during first quarter 2021 and 2020, respectively. Common shares were issued based on the determination by the Compensation Committee of the Board of Directors of our actual achievement of net revenue growth, Earnings Before Interest, Taxes, Depreciation and Amortization ("EBITDA") growth and customer service scores for the three-year performance period of each grant. As provided under the provisions of our stock incentive plan, certain of the participants elected to surrender a portion of the shares to be received to pay the withholding and other payroll taxes payable on the compensation resulting from the vesting of the PSUs.

The PSU grant awarded in November 2017 resulted in a total of 90,444 shares being issued during first quarter 2021, representing approximately 0.33 shares per PSU. Of the 90,444 shares issued, a total of 30,129 were surrendered by the participants for payroll taxes, resulting in a net issuance of 60,315 shares due to the vesting of the 2017 grant. The actual achievement level under the award metrics equaled the estimated performance as of the year-end 2020; therefore, the vesting of the PSUs did not impact compensation costs in our 2021 condensed consolidated statement of operations.

The PSU grant awarded in November 2016 resulted in a total of 364,810 shares being issued during first quarter 2020, representing approximately 1.53 shares per PSU. Of the 364,810 shares issued, a total of 126,465 were surrendered by the participants for payroll taxes, resulting in a net issuance of 238,345 shares due to the vesting of the 2016 grant. The actual achievement level under the award metrics equaled the estimated performance as of year-end 2019; therefore, the vesting of the PSUs did not impact compensation costs in our 2020 condensed consolidated statement of operations.

As of June 30, 2021, there was approximately $14.5 million, $0.9 million and $1.6 million of total unrecognized share-based compensation costs related to unvested restricted stock units (“RSUs”), PSUs and career shares, respectively. As of June 30, 2021, the unrecognized share-based compensation costs related to our RSUs, PSUs and career shares are expected to be recognized over approximately 2.1 years, 1.3 years and 4.2 years, respectively.