Acquisitions (Details) (SDG, USD $) In Thousands, unless otherwise specified	Nov. 02, 2012
SDG
Business Acquisition [Line Items]
Cash	$ 65,000
Accounts receivable	260,800
Inventories	126,100
Tangible assets (includes property and equipment, deferred tax assets and other assets)	6,200
Goodwill	122,600
Identifiable intangible assets	134,300
Accounts payable	(265,200)
Liabilities (includes accrued expenses, deferred tax liability and other liabilities)	(91,800)
Purchase price of acquired entity	$ 358,000