Other (Income), net Foreign Currency (Gain ) Loss by Currency (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Foreign Currency Transaction Gain (Loss), before Tax	$ 1,522	$ (547)	$ 1,001	$ 1,074
AustralianDollar [Member]
Foreign Currency Transaction Gain (Loss), before Tax	206	(213)	62	(110)
British Pound [Member]
Foreign Currency Transaction Gain (Loss), before Tax	177	(133)	130	283
Canadian Dollar [Member]
Foreign Currency Transaction Gain (Loss), before Tax	1,146	(102)	603	(338)
Euro [Member]
Foreign Currency Transaction Gain (Loss), before Tax	151	76	126	1,665
Mexican Peso [Member]
Foreign Currency Transaction Gain (Loss), before Tax	(161)	(22)	(19)	72
Russian Ruble [Member]
Foreign Currency Transaction Gain (Loss), before Tax	(195)	(18)	(414)	(33)
Other Currencies Net [Member]
Foreign Currency Transaction Gain (Loss), before Tax	$ 198	$ (135)	$ 513	$ (465)