Unconsolidated Affiliated Companies (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 01, 2011	Jul. 02, 2010	Jul. 01, 2011	Jul. 02, 2010	Dec. 31, 2010
Ownership percentage in affiliated companies, less than	50.00%		50.00%
Equity in earnings of affiliated companies	$ 1.0	$ 0.3	$ 1.4	$ 0.6
Unconsolidated affiliated companies	$ 18.9		$ 18.9		$ 17.3
PDTL Trading Company Ltd. [Member]
Ownership percentage in affiliated companies, less than	49.00%		49.00%
Colada Continua Chilean, S.A. [Member]
Ownership percentage in affiliated companies, less than	41.00%		41.00%
Minuet Realty Corp. [Member]
Ownership percentage in affiliated companies, less than	40.00%		40.00%
Nostag GmbH & Co. KG [Member]
Ownership percentage in affiliated companies, less than	33.00%		33.00%
Pakistan Cables Limited [Member]
Ownership percentage in affiliated companies, less than	24.90%		24.90%
Keystone Electric Wire & Cable Co., Ltd. [Member]
Ownership percentage in affiliated companies, less than	20.00%		20.00%
Thai Copper Rod Company Ltd. [Member]
Ownership percentage in affiliated companies, less than	18.00%		18.00%