13. Share-Based Payment

The Company has a long-term incentive plan for senior management that provides a cash award to participants for the increase in the share price of the Company's common stock through units (phantom shares) assigned by the Board of Directors. The cash award is calculated over a three-year interval on a calendar year basis. At the conclusion of each three-year interval, participants will receive a cash award based on the increase in the share price during a defined measurement period, times the number of units. The increase in the share price will be determined based on the change in the share price from the beginning to the end of the three-year interval. Dividends are accrued and paid at the end of each three-year interval to the extent that they exceed negative stock price appreciation. Plan payments are contingent on the continued employment of the participant unless termination is due to a qualifying event such as death, disability or retirement. The Company does not make payments in shares, warrants or options.

No payments were made under this plan during the first nine months ended September 30, 2011 and 2010.

At each reporting period, an estimate of the share-based compensation expense is accrued, utilizing the share price at the period end. The changes in accrual for share-based compensation that increased operating expense in the third quarters of 2011 and 2010 were each $0.1 million, net of tax. The changes in accrual for share-based compensation that increased operating expense in the first nine months of 2011 and 2010 were each $0.1 million, net of tax.