Employee Benefit Plans - Wyle Defined Benefit Plan (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 9,854,000	$ 860,000
Defined Benefit Plan, Fair Value of Plan Assets	81,719,000	80,362,000
Wyle Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payments in Year One	6,336,000
Defined Benefit Plan, Expected Future Benefit Payments in Year Two	6,429,000
Defined Benefit Plan, Expected Future Benefit Payments in Year Three	6,543,000
Defined Benefit Plan, Expected Future Benefit Payments in Year Four	6,627,000
Defined Benefit Plan, Expected Future Benefit Payments in Year Five	6,819,000
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter	35,547,000
Defined Benefit Plan, Accumulated Benefit Obligation	118,191,000	108,335,000
Defined Benefit Plan, Benefit Obligation	118,191,000	108,335,000	108,124,000
Defined Benefit Plan, Interest Cost	5,767,000	5,770,000
Defined Benefit Plan, Actuarial Net (Gains) Losses	9,630,000	(162,000)
Defined Benefit Plan, Benefits Paid	(5,541,000)	(5,397,000)
Defined Benefit Plan, Actual Return on Plan Assets	(2,956,000)	9,491,000
Defined Benefit Plan, Contributions by Employer	9,854,000	860,000
Defined Benefit Plan, Fair Value of Plan Assets	81,719,000	80,362,000	75,408,000
Defined Benefit Plan, Funded Status of Plan	(36,472,000)	(27,973,000)
Defined Benefit Plan, Expected Return on Plan Assets	(6,524,000)	(5,992,000)
Defined Benefit Plan, Amortization of Net Gains (Losses)	1,041,000	3,114,000
Defined Benefit Plan, Net Periodic Benefit Cost	$ 284,000	$ 2,892,000
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	5.50%	4.75%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Expected Long-Term Return on Assets	7.50%	8.00%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate	5.50%	5.50%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets	8.00%	8.25%