Restructuring Charges (Details) (USD $) In Thousands	9 Months Ended
Sep. 30, 2011
Company's accrual for restructuring activities:-
Beginning Restructuring Accrual Balance, as of December 31, 2010	$ 7,856
Restructuring charges	2,831
Restructuring Cash Payments	(4,103)
Impact of foreign currency on restructuring reserve	101
Ending Restructuring Accrual Balance, as of September 30, 2011	6,685
Employee Severance [Member]
Company's accrual for restructuring activities:-
Beginning Restructuring Accrual Balance, as of December 31, 2010	7,721
Restructuring charges	2,441
Restructuring Cash Payments	(3,602)
Impact of foreign currency on restructuring reserve	101
Ending Restructuring Accrual Balance, as of September 30, 2011	6,661
Other Restructuring Charges [Member]
Company's accrual for restructuring activities:-
Beginning Restructuring Accrual Balance, as of December 31, 2010	135
Restructuring charges	390
Restructuring Cash Payments	(501)
Impact of foreign currency on restructuring reserve	0
Ending Restructuring Accrual Balance, as of September 30, 2011	$ 24

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b)(2))

-URI http://asc.fasb.org/extlink&oid=6394695&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b) (2)

-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 95-3

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 146

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Name:	us-gaap_RestructuringReserveSettledWithCash
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration