Inventories (Tables)

3 Months Ended

Mar. 31, 2012

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,
	2012		2011
Gross inventories @ FIFO:
Finished goods	$	16,389	$	11,914
Work in progress		32,223		27,749
Raw materials & component parts		164,542		144,731
Maintenance, tooling & supplies		17,062		17,001
Total gross inventories @ FIFO		230,216		201,395
Less reserves:
LIFO		33,103		32,103
Valuation		4,549		3,144
Total inventories as reported	$	192,564	$	166,148