SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended			9 Months Ended
	Feb. 28, 2013	Sep. 27, 2014	Sep. 28, 2013	Mar. 30, 2013	Sep. 27, 2014	Sep. 28, 2013	Dec. 28, 2013
Inventories
Inventory valued at the lower of cost, determined on the last-in, first-out (LIFO) method, or market (as a percent)		43.00%			43.00%		43.00%
Excess of replacement cost of inventories over the LIFO value		$ 47,380			$ 47,380		$ 45,204
Raw materials and purchased parts		185,573			185,573		179,576
Work-in-process		29,954			29,954		27,294
Finished goods and manufactured goods		216,498			216,498		218,334
Subtotal		432,025			432,025		425,204
Less: LIFO reserve		47,380			47,380		45,204
Net inventory		384,645			384,645		380,000
Earnings before income taxes and equity in earnings of nonconsolidated subsidiaries
United States		4,844	66,143		141,635	253,564
Foreign		34,671	36,585		84,410	100,288
Earnings before income taxes and equity in earnings of nonconsolidated subsidiaries		39,515	102,728		226,045	353,852
Accounting policy disclosures
Shares of common stock available for issuance		1,463,600			1,463,600
Equity Method Investments
Proceeds from sale of assets	29,250				2,107	39,564
Foreign currency translation adjustments				(5,194)		(5,194)
Deferred tax benefits				3,200
Stock option plans
Accounting policy disclosures
Compensation expense (included in selling, general and administrative expenses)		1,242	1,308		3,767	3,935
Tax benefits associated with compensation expense		$ 478	$ 504		$ 1,450	$ 1,515
Minimum | Stock option plans
Accounting policy disclosures
Vesting period of options					3 years
Expiration period of grant					6 years
Maximum | Stock option plans
Accounting policy disclosures
Vesting period of options					6 years
Expiration period of grant					10 years