Commitments and Contingencies (Notes)

3 Months Ended

Oct. 27, 2012

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

As part of the Company’s insurance program, it retains the risk of loss, up to certain limits, for claims related to automobile liability, general liability, workers’ compensation, employee group health, and locate damages, and the Company has established reserves that it believes to be adequate based on current evaluations and experience with these types of claims. For these claims, the effect on the Company’s financial statements is generally limited to the amount needed to satisfy its insurance deductibles or retentions.

From time to time, the Company and its subsidiaries are parties to various other claims and legal proceedings. It is the opinion of the Company’s management, based on information available at this time, that such other pending claims or proceedings will not have a material effect on its condensed consolidated financial statements.

Performance Bonds and Guarantees

The Company has obligations under performance and other surety contract bonds related to certain of its customer contracts. Performance bonds generally provide the Company’s customer with the right to obtain payment and/or performance from the issuer of the bond if the Company fails to perform its contractual obligations. As of October 27, 2012, the Company had $237.6 million of outstanding performance and other surety contract bonds and no events have occurred in which the customers have exercised their rights under the bonds.

The Company has periodically guaranteed certain obligations of its subsidiaries, including obligations in connection with obtaining state contractor licenses and leasing real property.

Letters of Credit

The Company has standby letters of credit issued under its Credit Agreement as part of its insurance program. These standby letters of credit collateralize the Company’s obligations to its insurance carriers in connection with the settlement of potential claims. As of October 27, 2012, the Company had $44.1 million outstanding standby letters of credit issued under the Credit Agreement.