Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2011

Shareholders' Equity [Abstract]

Schedule Of Capital Units

	September 30,		December 31,
	2011		2010
Common shares issued and fully paid, 2011: CHF 14.38 per share; 2010: CHF 15.00 per share		40,003,642		40,003,642
Share capital at end of period	$	571,455	$	600,055

Schedule Of Share Capital Roll Forward

	Nine Months Ended
	September 30, 2011
Total shares issued at beginning and end of period		40,003,642
Treasury shares issued, balance at beginning of period		1,914,416
Shares repurchased		969,163
Shares issued out of treasury		(1,025,494	)
Total treasury shares at end of period		1,858,085
Total shares outstanding at end of period		38,145,557