Deferred Compensation Plans	9 Months Ended
Deferred Compensation Plans	Sep. 30, 2012
Compensation Related Costs [Abstract]
Deferred Compensation Plans	Deferred Compensation Plans. The Company terminated its deferred compensation plans, as described in the Annual Report on Form 10-K for the year ended December 31, 2011, as filed with the SEC on March 14, 2012. As a result of the termination, the Company received $1.5 million related to the cash surrender value of the life insurance proceeds (life insurance policies were maintained as a funding source to the deferred compensation plans) and distributed $1.2 million to plan participants. As a result of the merger with Apex, the Company assumed a long-term incentive program, which began in 2010, that provides for a total award of up to $10.0 million to eligible employees, based on the attainment by Apex of stipulated annual revenues and EBITDA goals. The Company determined that it was probable that the revenue and EBITDA goals for Apex would be reached in 2012 and the Company accrued approximately $7.9 million at May 15, 2012 (the effective date of the acquisition), and $9.3 million at September 30, 2012, which are included in deferred compensation in the Consolidated Balance Sheet.

The entire disclosure for compensation costs, including compensated absences accruals, compensated absences liability, deferred compensation arrangements and income statement compensation items. Deferred compensation arrangements may include a description of an arrangement with an individual employee, which is generally an employment contract between the entity and a selected officer or key employee containing a promise by the employer to pay certain amounts at designated future dates, usually including a period after retirement, upon compliance with stipulated requirements. This type of arrangement is distinguished from broader based employee benefit plans as it is usually tailored to the employee. Disclosure also typically includes the amount of related compensation expense recognized during the reporting period, the number of shares (units) issued during the period under such arrangements, and the carrying amount as of the balance sheet date of the related liability.

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