Quarterly Data (Schedule Of Quarterly Data) (Details) (USD $)	3 Months Ended																12 Months Ended
	Dec. 31, 2011		Sep. 25, 2011		Jun. 26, 2011		Mar. 27, 2011		Dec. 31, 2010		Sep. 26, 2010		Jun. 27, 2010		Mar. 28, 2010		Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Quarterly Data [Abstract]
Net revenues	$ 411,730,000	[1]	$ 371,891,000	[1],[2]	$ 391,286,000	[1],[3]	$ 354,004,000	[1],[3]	$ 386,277,000	[1]	$ 345,041,000	[1],[2]	$ 358,427,000	[1],[3]	$ 343,537,000	[1],[3]	$ 1,528,911,000	$ 1,433,282,000	$ 1,434,885,000
Gross profit	192,031,000	[1]	178,274,000	[1],[2]	184,032,000	[1],[3]	164,504,000	[1],[3]	176,795,000	[1]	166,564,000	[1],[2]	174,301,000	[1],[3]	170,811,000	[1],[3]	718,841,000	688,471,000	685,541,000
Income from continuing operations before interest, loss on extinguishments of debt and taxes	63,118,000	[1]	63,211,000	[1],[2]	57,179,000	[1],[3]	49,665,000	[1],[3]	50,343,000	[1]	53,493,000	[1],[2]	64,170,000	[1],[3]	65,386,000	[1],[3]	233,173,000	233,392,000	250,228,000
Income from continuing operations	41,915,000	[1]	33,752,000	[1],[2]	31,924,000	[1],[3]	14,112,000	[1],[3]	13,608,000	[1]	10,987,000	[1],[2]	32,346,000	[1],[3]	32,749,000	[1],[3]	121,703,000	89,690,000	126,589,000
Income from discontinued operations	126,306,000	[1]	10,313,000	[1],[2]	2,563,000	[1],[3]	64,082,000	[1],[3]	67,828,000	[1]	11,548,000	[1],[2]	28,180,000	[1],[3]	5,209,000	[1],[3]	203,264,000	112,765,000	187,422,000
Net income	168,221,000	[1]	44,065,000	[1],[2]	34,487,000	[1],[3]	78,194,000	[1],[3]	81,436,000	[1]	22,535,000	[1],[2]	60,526,000	[1],[3]	37,958,000	[1],[3]	324,967,000	202,455,000	314,011,000
Less: Income from continuing operations attributable to noncontrolling interest	251,000	[1]	289,000	[1],[2]	258,000	[1],[3]	223,000	[1],[3]	204,000	[1]	226,000	[1],[2]	259,000	[1],[3]	172,000	[1],[3]	1,021,000	861,000	632,000
Less: Income from discontinued operations attributable to noncontrolling interest	174,000	[1]	125,000	[1],[2]	159,000	[1],[3]	159,000	[1],[3]	154,000	[1]	113,000	[1],[2]	119,000	[1],[3]	114,000	[1],[3]	617,000	500,000	10,385,000
Net income attributable to common shareholders	167,796,000	[1]	43,651,000	[1],[2]	34,070,000	[1],[3]	77,812,000	[1],[3]	81,078,000	[1]	22,196,000	[1],[2]	60,148,000	[1],[3]	37,672,000	[1],[3]	323,329,000	201,094,000	302,994,000
Income from continuing operations, Basic	$ 1.02	[1],[4]	$ 0.82	[1],[2],[4]	$ 0.78	[1],[3],[4]	$ 0.35	[1],[3],[4]	$ 0.34	[1],[4]	$ 0.27	[1],[2],[4]	$ 0.80	[1],[3],[4]	$ 0.82	[1],[3],[4]	$ 2.98	$ 2.23	$ 3.17
Income from discontinued operations, Basic	$ 3.10	[1],[4]	$ 0.25	[1],[2],[4]	$ 0.06	[1],[3],[4]	$ 1.60	[1],[3],[4]	$ 1.69	[1],[4]	$ 0.29	[1],[2],[4]	$ 0.70	[1],[3],[4]	$ 0.13	[1],[3],[4]	$ 5.00	$ 2.81	$ 4.46
Net income	$ 4.12	[1],[4]	$ 1.07	[1],[2],[4]	$ 0.84	[1],[3],[4]	$ 1.94	[1],[3],[4]	$ 2.03	[1],[4]	$ 0.56	[1],[2],[4]	$ 1.51	[1],[3],[4]	$ 0.95	[1],[3],[4]	$ 7.98	$ 5.04	$ 7.63
Income from continuing operations, Diluted	$ 1.02	[1],[4]	$ 0.82	[1],[2],[4]	$ 0.77	[1],[3],[4]	$ 0.34	[1],[3],[4]	$ 0.33	[1],[4]	$ 0.27	[1],[2],[4]	$ 0.80	[1],[3],[4]	$ 0.81	[1],[3],[4]	$ 2.96	$ 2.21	$ 3.15
Income from discontinued operations, Diluted	$ 3.08	[1],[4]	$ 0.25	[1],[2],[4]	$ 0.06	[1],[3],[4]	$ 1.58	[1],[3],[4]	$ 1.68	[1],[4]	$ 0.28	[1],[2],[4]	$ 0.70	[1],[3],[4]	$ 0.13	[1],[3],[4]	$ 4.97	$ 2.79	$ 4.43
Net income	$ 4.10	[1],[4]	$ 1.07	[1],[2],[4]	$ 0.83	[1],[3],[4]	$ 1.92	[1],[3],[4]	$ 2.01	[1]	$ 0.55	[1],[2]	$ 1.49	[1],[3]	$ 0.94	[1],[3]	$ 7.92	$ 4.99	$ 7.59
Reduction in income tax expense											5,700,000						(28,642,000)	25,393,000	(126,716,000)
Environmental costs					$ 400,000		$ 100,000
Increase (decrease) of diluted earnings per share					$ 0.01

[1] Amounts reflect the retrospective impact of reporting the marine, cargo systems and cargo container businesses as discontinued operations. See Note 18.

[2] During the third quarter of 2010, the Company determined that an out-of-period adjustment associated with tax returns filed and tax audit conclusions was required, which reduced income tax expense by approximately $5.7 million. The Company has determined that this was not material on a quantitative or qualitative basis to the prior period financial statements.

[3] The Company identified $0.1 million and $0.4 million, net of tax, of environmental costs related to discontinued operations that were erroneously reported in continuing operations during the first and second quarters of 2011, respectively, which did not change diluted earnings per share for the first quarter and increased diluted earnings per share by $0.01 for the second quarter. The Company has classified these environmental costs as income from discontinued operations. Management has determined that the impact of this error was not material on a quantitative or qualitative basis to the financial statements for the first and second quarters of fiscal 2011.

[4] The sum of the quarterly per share amounts may not equal per share amounts reported for year-to-date periods. This is due to changes in the number of weighted average shares outstanding and the effects of rounding for each period.