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Subsequent Event	6 Months Ended
Subsequent Event	Jun. 30, 2011
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Event On August 8, 2011, the Company's Board of Directors authorized an additional $250.0 million of stock repurchases over the twelve month period that commenced in May 2011. The total authorized funding for stock repurchases in that twelve month period is now $400.0 million.