Employee Benefit Plans	12 Months Ended
Dec. 31, 2011
Employee Benefit Plans [Abstract]
EMPLOYEE BENEFIT PLANS	15. EMPLOYEE BENEFIT PLANS The Company provides a 401(k) defined contribution retirement plan for all eligible employees who meet certain eligibility requirements, including performing three months of service. The Company matches 100% up to 3% of employee contributions, plus 50% of the amount of the participant’s deferred compensation that exceeds 3% of the participant’s compensation, but not in excess of 5% of the participant’s compensation. Participants are 100% vested in the portion of the plan representing employee and employer safe harbor match contributions. For the years ended December 31, 2011, 2010 and 2009, the Company made contributions of $0.6 million, $0.5 million and $0.4 million, respectively, under this plan.

Employee Benefit Plans

12 Months Ended

Dec. 31, 2011

15. EMPLOYEE BENEFIT PLANS

The Company provides a 401(k) defined contribution retirement plan for all eligible employees who meet certain eligibility requirements, including performing three months of service. The Company matches 100% up to 3% of employee contributions, plus 50% of the amount of the participant’s deferred compensation that exceeds 3% of the participant’s compensation, but not in excess of 5% of the participant’s compensation.

Participants are 100% vested in the portion of the plan representing employee and employer safe harbor match contributions. For the years ended December 31, 2011, 2010 and 2009, the Company made contributions of $0.6 million, $0.5 million and $0.4 million, respectively, under this plan.

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

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+ Details

Archipelago Learning, Inc. 10-K