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Benefit Plans - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]  
Defined benefit plans, general information Republic maintains a 401(k) plan for eligible employees who have been employed for at least 30-days and have reached the age of 21.
Description of 401(K) matching contribution During 2011, participants in the plan had the option to contribute from 1% to 75% of their annual eligible compensation up to the maximum allowed by the IRS. Effective January 1, 2012, participants in the plan had the option to contribute from 1% to 75% of their annual eligible compensation up to the maximum allowed by the IRS. The Company matches 100% of participant contributions up to 1% and an additional 75% for participant contributions between 2% and 5% of each participant’s annual eligible compensation. Participants are fully vested after two years of employment.
Defined Benefit Plan, vesting period 2 years
Death Compensation Benefit $ 2