Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 businesssegments	Mar. 31, 2011	Dec. 31, 2011
Segment Reporting Information [Line Items]
Number of reportable segments	2
Net sales	$ 655,010	$ 664,950
Depreciation expense	80,097	75,254
Gross profit	104,981	126,686
Capital additions	123,935	104,993
Property, plant and equipment, gross	4,328,820		4,247,615
Packaging [Member]
Segment Reporting Information [Line Items]
Net sales	581,511	597,807
Depreciation expense	57,920	54,799
Gross profit	87,303	111,305
Capital additions	53,551	65,984
Property, plant and equipment, gross	3,246,362		3,217,308
Test [Member]
Segment Reporting Information [Line Items]
Net sales	73,499	67,132
Depreciation expense	22,177	20,418
Gross profit	17,678	15,487
Capital additions	49,082	21,636
Property, plant and equipment, gross	931,009		880,611
Other [Member]
Segment Reporting Information [Line Items]
Net sales	0	11
Depreciation expense	0	37
Gross profit	0	(106)
Capital additions	21,302	17,373
Property, plant and equipment, gross	$ 151,449		$ 149,696