Benefit Plans	12 Months Ended
Mar. 31, 2013
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Benefit Plans	BENEFIT PLANS Historically, the Company participated in several multi-employer defined benefit pension plans (“MEPPs”) providing defined benefits to union employees under the terms of collective bargaining agreements (“CBAs”). Contributions were made to the plans in accordance with negotiated CBAs. The plans generally provided retirement benefits to participants based on their service to contributing employers. In connection with the renewal of CBAs, the Company has been successful in negotiating its withdrawal from MEPPs, replacing those retirement plans for CBA employees with defined contribution plans. As part of the withdrawal from a MEPP, the Company is required to fund its portion of the MEPP’s unfunded pension obligation, if any. The amount of the withdrawal liability assessed by a MEPP is impacted by a number of factors, including investment returns, benefit levels, interest rates and continued participation by other employers in the MEPP. The Company recognized charges related to the withdrawal from these plans of $4.3 million and $4.6 million for the years ended March 31, 2012 and 2011, respectively. The Company recognized no such charges for the year ended March 31, 2013. MEPP withdrawal liabilities amounted to $0.9 million at March 31, 2013 and $1.6 million at March 31, 2012. The Company has successfully negotiated its withdrawal from all MEPPs in which it previously participated and has fully accrued for the related withdrawal assessments. The Company has a defined contribution 401(k) plan (the “401(k) plan”) covering substantially all full-time employees. Under the terms of the 401(k) plan, the Company makes matching contributions of up to two percent of participant wages. Amounts expensed under the 401(k) plan for fiscal 2013, 2012 and 2011 were $11.7 million, $11.1 million and $10.1 million, respectively. The Company has a deferred compensation plan that is a non-qualified plan. The deferred compensation plan allows eligible employees and non-employee directors, who elect to participate in the plan, to defer the receipt of taxable compensation. Participants may set aside up to a maximum of 75% of their base salary and up to a maximum of 100% of their bonus compensation or directors’ fees in tax-deferred investments. The Company’s deferred compensation plan liabilities are funded through an irrevocable rabbi trust. The assets of the trust, which consist of exchange traded open-ended mutual funds, cannot be reached by the Company or its creditors except in the event of the Company’s insolvency or bankruptcy. Assets held in the rabbi trust were $13.6 million and $11.1 million at March 31, 2013 and 2012, respectively, and are included within other non-current assets on the Consolidated Balance Sheets. The Company’s deferred compensation plan liabilities were $13.6 million and $11.1 million at March 31, 2013 and 2012, respectively, and are included within other non-current liabilities on the Consolidated Balance Sheets. Gains or losses on the deferred compensation plan assets are recognized as other income, net, while gains or losses on the deferred compensation plan liabilities are recognized as compensation expense in the Consolidated Statements of Earnings.

Benefit Plans

12 Months Ended

Mar. 31, 2013

General Discussion of Pension and Other Postretirement Benefits [Abstract]

BENEFIT PLANS

Historically, the Company participated in several multi-employer defined benefit pension plans (“MEPPs”) providing defined benefits to union employees under the terms of collective bargaining agreements (“CBAs”). Contributions were made to the plans in accordance with negotiated CBAs. The plans generally provided retirement benefits to participants based on their service to contributing employers.

In connection with the renewal of CBAs, the Company has been successful in negotiating its withdrawal from MEPPs, replacing those retirement plans for CBA employees with defined contribution plans. As part of the withdrawal from a MEPP, the Company is required to fund its portion of the MEPP’s unfunded pension obligation, if any. The amount of the withdrawal liability assessed by a MEPP is impacted by a number of factors, including investment returns, benefit levels, interest rates and continued participation by other employers in the MEPP.

The Company recognized charges related to the withdrawal from these plans of $4.3 million and $4.6 million for the years ended March 31, 2012 and 2011, respectively. The Company recognized no such charges for the year ended March 31, 2013. MEPP withdrawal liabilities amounted to $0.9 million at March 31, 2013 and $1.6 million at March 31, 2012. The Company has successfully negotiated its withdrawal from all MEPPs in which it previously participated and has fully accrued for the related withdrawal assessments.

The Company has a defined contribution 401(k) plan (the “401(k) plan”) covering substantially all full-time employees. Under the terms of the 401(k) plan, the Company makes matching contributions of up to two percent of participant wages. Amounts expensed under the 401(k) plan for fiscal 2013, 2012 and 2011 were $11.7 million, $11.1 million and $10.1 million, respectively.

The Company has a deferred compensation plan that is a non-qualified plan. The deferred compensation plan allows eligible employees and non-employee directors, who elect to participate in the plan, to defer the receipt of taxable compensation. Participants may set aside up to a maximum of 75% of their base salary and up to a maximum of 100% of their bonus compensation or directors’ fees in tax-deferred investments. The Company’s deferred compensation plan liabilities are funded through an irrevocable rabbi trust. The assets of the trust, which consist of exchange traded open-ended mutual funds, cannot be reached by the Company or its creditors except in the event of the Company’s insolvency or bankruptcy. Assets held in the rabbi trust were $13.6 million and $11.1 million at March 31, 2013 and 2012, respectively, and are included within other non-current assets on the Consolidated Balance Sheets. The Company’s deferred compensation plan liabilities were $13.6 million and $11.1 million at March 31, 2013 and 2012, respectively, and are included within other non-current liabilities on the Consolidated Balance Sheets. Gains or losses on the deferred compensation plan assets are recognized as other income, net, while gains or losses on the deferred compensation plan liabilities are recognized as compensation expense in the Consolidated Statements of Earnings.