Business Segment Information (Schedule Of Segment Results) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 01, 2012		Mar. 27, 2011		Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from external customers	$ 387,757		$ 354,004
Segment operating profit	185,835		164,504
Assets	3,649,886		3,678,803		3,924,103
Expenditures for property, plant and equipment	15,029		5,891
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Intersegment revenues	39,564		34,225
EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Intersegment revenues	17,719		14,296
AJLA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Intersegment revenues	248		83
OEM [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Intersegment revenues	1,863		1,631
Segment [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from external customers	387,757		354,004
Depreciation and amortization	23,329		24,641
Segment operating profit	60,895	[1]	50,260	[1]
Assets	2,848,940		3,197,282
Expenditures for property, plant and equipment	11,441		5,827
Segment [Member] | North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from external customers	167,308		152,724
Depreciation and amortization	15,313		16,431
Segment operating profit	22,790	[1]	20,270	[1]
Assets	1,689,959		2,051,084
Expenditures for property, plant and equipment	3,839		3,420
Segment [Member] | EMEA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from external customers	134,600		125,450
Depreciation and amortization	5,149		5,282
Segment operating profit	21,578	[1]	16,864	[1]
Assets	815,566		828,744
Expenditures for property, plant and equipment	2,695		1,415
Segment [Member] | AJLA [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from external customers	46,988		42,033
Depreciation and amortization	1,250		1,316
Segment operating profit	11,192	[1]	9,775	[1]
Assets	253,703		235,488
Expenditures for property, plant and equipment	7		49
Segment [Member] | OEM [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues from external customers	38,861		33,797
Depreciation and amortization	1,617		1,612
Segment operating profit	5,335	[1]	3,351	[1]
Assets	89,712		81,966
Expenditures for property, plant and equipment	$ 4,900		$ 943

[1] Segment operating profit includes a segment's net revenues from external customers reduced by its cost of goods sold, selling, general and administrative expenses, and an allocation of corporate expenses. Segment operating profit excludes goodwill impairment charges, restructuring and impairment charges, interest income and expense, loss on extinguishment of debt and taxes on income.