Inventories (Tables)

3 Months Ended

Mar. 31, 2013

Inventories [Abstract]

Inventories used in determining cost of sales

Inventories used in determining cost of sales were as follows (in thousands of dollars):

	March 31,		December 31,
	2013		2012
Gross inventories at FIFO:
Finished goods	$	34,523	$	26,751
Work in progress		33,615		31,136
Raw materials & component parts		197,644		185,739
Maintenance, tooling & supplies		16,028		14,864
Total gross inventories at FIFO		281,810		258,490
Less reserves:
LIFO		35,854		34,954
Valuation		5,049		5,061
Total inventories as reported	$	240,907	$	218,475