under the 2010 Restricted Stock Unit Plan at the time of termination were not affected, but no additional awards will be made under the 2010 Restricted Stock Unit Plan. All outstanding awards made under the 2010 Restricted Stock Unit Plan vested no later than March 1, 2020. Further, all outstanding awards made under the 201 Restricted Stock Unit Plan vested no later than March 1, 2021. Restricted Stock Awards Restricted stock awards granted periodically under the 201 Long-Term Incentive Plan generally vest ratably over a four-year period. The Company has also granted restricted stock awards to non-employee directors, which generally vest ratably over a three-year period. Performance Share Awards Performance share awards have been granted periodically to certain of the Company’s executive officers pursuant to the 201 Long-Term Incentive Plan. )utstanding performance share awards are subject to vesting conditions based on both continued service and the attainment of pre-established performance goals. If performance goals are achieved, the performance share awards will vest up to a maximum of 200 of target. Performance share awards generally cliff vest at the end of a three-year vesting period based on the attainment of annual performance goals over the vesting period. erformance Share A;ar)s Grante) in arch   Performance share awards granted in March 201 have a performance condition, which is the percentage change in the Company’s tangible book value per common share plus change in accumulated dividends, or, in the event of a change in control, a market condition, which is the Company’s total shareholder return relative to its peer group. erformance Share A;ar)s Grante) in arch   an) arch  Performance share awards granted in March 2020 and March 2021 have a performance condition, which is the percentage change in the Company’s book value per common share plus change in accumulated dividends over three years and three-year average underwriting expense ratio rank compared to peers, or, in the event of a change in control, a market condition, which is the Company’s total shareholder return relative to its peer group. The percentage change in tangible book value per share plus change in accumulated dividends, percentage change in book value per share plus change in accumulated dividends, and average underwriting expense ratio rank are calculated in accordance with the terms of the applicable award agreement. Cash Settled Restricted Stock Units CSRSUs are liability awards with fair value measurement based on the fair market value of the Company’s common shares at the end of each reporting period. CSRSUs granted periodically pursuant to the 201 Restricted Stock Unit Plan generally vest ratably over 4 years. Valuation Assumptions Performance Share Awards Granted in March 2019 For performance share awards granted in March 201, the performance metric relates to the percentage change in tangible book value per share plus change in accumulated dividends which is classified as a performance condition under FASB ASC Topic Compensation  Stoc/ Compensation . As a result, the fair value of the performance share awards is determined based on the fair market value of RenaissanceRe’s common shares on the grant date. The estimated fair value of performance share awards is amortized as an expense over the requisite service period. Performance Share Awards Granted in March 2020 and March 2021 For performance share awards granted in March 2020 and March 2021, the performance metrics relates to (i) the percentage change in book value per share plus change in accumulated dividends and (ii) average underwriting expense ratio rank compared to peers, both of which are classified as performance conditions under FASB ASC Topic Compensation  Stoc/ Compensation . As a result, the fair value of the performance F-