Retirement Plans (Notes)	12 Months Ended
Retirement Plans (Notes)	Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]
Retirement Plans	Retirement Plans The Company has a defined contribution retirement plan which covers substantially all employees and which provides for a Company contribution equal to 4% of each participant’s compensation and a Company matching contribution of up to 50% of the first 4% of pre-tax contributions made by each participant. Employee contributions are limited to the 402(g) limit of compensation. The total expense for the plan amounted to $1,070,000, $930,000 and $803,000 in 2012, 2011 and 2010, respectively. The Company also has two agreements in place to pay $50,000 annually for 20 years from the retirement date to the surviving spouse of a deceased former senior officer of the Company and to one current senior officer. Total expense under these two agreements amounted to $35,000, $55,000 and $60,000 in 2012, 2011 and 2010, respectively. The current liability recorded for these two agreements was $904,000 and $918,000, as of December 31, 2012 and 2011, respectively.

The entire disclosure for pension and other postretirement benefits.

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