Restructuring Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Company's accrual for restructuring activities:-
Beginning Restructuring Accrual Balance, as of December 31, 2011			$ 7,569
Restructuring Charges	3,118	362	11,261	2,831
Restructuring Cash Payments			(8,230)
Impact of foreign currency on restructuring reserve			231
Ending Restructuring Accrual Balance, as of September 30, 2012	10,831		10,831
Employee Severance [Member]
Company's accrual for restructuring activities:-
Beginning Restructuring Accrual Balance, as of December 31, 2011			7,469
Restructuring Charges			9,732
Restructuring Cash Payments			(6,613)
Impact of foreign currency on restructuring reserve			231
Ending Restructuring Accrual Balance, as of September 30, 2012	10,819		10,819
Other Restructuring Charges [Member]
Company's accrual for restructuring activities:-
Beginning Restructuring Accrual Balance, as of December 31, 2011			100
Restructuring Charges			1,529
Restructuring Cash Payments			(1,617)
Impact of foreign currency on restructuring reserve			0
Ending Restructuring Accrual Balance, as of September 30, 2012	$ 12		$ 12