Earnings Per Share and Equity (Narrative) (Details) (USD $)	0 Months Ended	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Jul. 30, 2012	Mar. 30, 2012	Jun. 29, 2012	Sep. 28, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share Repurchase Program
Stock repurchase program, authorized amount	$ 300,000,000
Repurchase of common stock, shares					8,800,000
Treasury Stock, Value, Acquired, Cost Method, Net of Fees					55,300,000
Weighted average price per share of shares repurchased					$ 6.26
Fees incurred for repurchase of shares					200,000
Remaining amount authorized under share repurchase program					244,700,000
Shares reissued or retired					0
Shares for Restricted Stock Units Tax Withholding
Payments of tax withholding for restricted shares		5,300,000	8,300,000	8,800,000	9,600,000	19,300,000	15,000,000
Shares reissued or retired					0
Noncontrolling Interest
Non-controlling interest in consolidated subsidiary					29,600,000	25,300,000	22,000,000
Net (income) loss attributable to non-controlling interests					$ 4,300,000	$ 3,300,000	$ 2,400,000
Treasury Stock [Member]
Share Repurchase Program
Repurchase of common stock, shares					8,844,150
Shares for Restricted Stock Units Tax Withholding
Shares withheld for payment of taxes					1,141,640	2,037,941	1,956,317