Lines of Credit and Financing Arrangements (Details Textual 1) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Lines of Credit and Financing Arrangements (Textuals) [Abstract]
Borrowing under swing line loan	$ 29.0
Foreign Obligations [Member]
Lines of Credit and Financing Arrangements (Textuals) [Abstract]
Amount committed in combined foreign facilities	4.1
Available capacity in combined foreign facilities	4.1	10.1
Borrowing under swing line loan	$ 6.7

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

Name:	us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant