Profit Sharing Plan	12 Months Ended
Profit Sharing Plan	Dec. 31, 2012
Deferred Compensation Arrangements [Abstract]
Profit Sharing Plan	Profit Sharing Plan The Company’s employees are eligible to become members of the Profit Sharing Plan (the “Plan”). The Company, at the option of the Board of Directors, may make annual contributions to the Plan, and the contributions are not to exceed the greater of the Company’s net income for the plan year or its retained earnings at that date. In addition, the annual contributions may not exceed an amount equal to 15% of the compensation paid or accrued during the year to all participants under the Plan. No contributions were made in the past three years. The Plan includes an option for employees to make salary deferrals under Section 401(k) of the Internal Revenue Code. The matching contributions, at a rate set by the Board of Directors, totaled $7.2 million, $7.2 million, and $7.0 million for 2012, 2011, and 2010, respectively. The Plan also includes an employee stock ownership plan that covers substantially all employees. The Board of Directors authorized the Plan to purchase approximately $0, $0, and $1.2 million of the Company’s common stock in the open market for allocation to the Plan participants in 2012, 2011, and 2010, respectively. The Company recognized compensation expense equal to such amounts.

Tabular disclosure of the description of the plan, the basis for determining contributions, including the employee groups covered, and the nature and effect of significant matters affecting comparability of information for all periods presented. For leveraged ESOPs and pension reversion ESOPs, the disclosure may include the basis for releasing shares and how dividends on allocated and unallocated shares are used. Disclosure may also include a description of the accounting policies followed for ESOP transactions, including the method of measuring compensation, the classification of dividends on ESOP shares, and the treatment of ESOP shares for EPS computations. If the employer has both old ESOP shares for which it does not adopt the latest guidance and new ESOP shares for which the new guidance is required, the accounting policies for both blocks of shares may be described. Disclosure may also include he amount of compensation cost recognized during the period, the number of allocated shares, committed-to-be-released shares, and suspense shares held by the ESOP at the balance-sheet date, the fair value of unearned ESOP shares at the balance-sheet date for shares accounted for under the latest guidance, the existence and nature of any repurchase obligation, including disclosure of the fair value of the shares allocated as of the balance sheet date, which are subject to a repurchase obligation.

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