Other (Income), net Foreign Currency (Gain ) Loss by Currency (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Foreign Currency Transaction Gain (Loss), before Tax	$ (9)	$ 1,712	$ (521)	$ 1,621
British Pound [Member]
Foreign Currency Transaction Gain (Loss), before Tax	44	158	(47)	416
Canadian Dollar [Member]
Foreign Currency Transaction Gain (Loss), before Tax	(124)	149	(543)	(236)
Euro [Member]
Foreign Currency Transaction Gain (Loss), before Tax	41	1,619	(25)	1,589
Mexican Peso [Member]
Foreign Currency Transaction Gain (Loss), before Tax	36	(14)	142	94
Russian Ruble [Member]
Foreign Currency Transaction Gain (Loss), before Tax	(24)	(69)	(219)	(15)
Other Currencies Net [Member]
Foreign Currency Transaction Gain (Loss), before Tax	$ 18	$ (131)	$ 171	$ (227)