Investment in Joint Venture (Tables)

12 Months Ended

Dec. 31, 2012

Equity Method Investments and Joint Ventures [Abstract]

Gain From Affiliates

The gain is computed as the difference between the book value of the contributed businesses that were deconsolidated and the fair value of the consideration received in exchange, including the 50% interest in Apex and the cash and receivables received from Apex in connection with the transaction as indicated in the table below ($ in millions):

Fair value of consideration received:
Fair value of 50% equity interest received	$	480.0
Cash received	45.2
Receivable from joint venture	44.8
Total fair value of consideration received	570.0
Less book value of net assets contributed	(279.0		)
Pre-tax gain on contribution to joint venture	291.0
Income tax expense	(58.8		)
After-tax gain on contribution to joint venture	$	232.2