Restructuring (U.S. Restructuring) (Details) (United States Restructuring [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		5 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012 employees
Restructuring Cost and Reserve [Line Items]
Number of employees eliminated			30
Beginning Balance	$ 41	$ 121	$ 963
Payments	(4)	(80)	(842)
Reversal	(37)
Ending Balance	0	41	121
Employee Termination Costs [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	13	13	568
Payments	0	0	(555)
Reversal	(13)
Ending Balance	0	13	13
Other [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	28	108	395
Payments	(4)	(80)	(287)
Reversal	(24)
Ending Balance	$ 0	$ 28	$ 108