Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 segment	Sep. 30, 2012	Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of reportable segments			2
Net sales	$ 767,987	$ 695,353	$ 2,201,575	$ 2,036,890
Depreciation expense	97,648	85,172	277,621	247,160
Gross profit	141,008	116,787	394,340	311,088
Capital additions	97,055	173,417	380,179	446,767
Property, plant and equipment, gross	4,865,453		4,865,453		4,599,053
Packaging [Member]
Segment Reporting Information [Line Items]
Net sales	655,294	615,933	1,895,462	1,808,111
Depreciation expense	67,357	60,493	191,720	177,294
Gross profit	105,366	96,550	296,074	251,851
Capital additions	39,927	63,982	209,833	184,836
Property, plant and equipment, gross	3,559,727		3,559,727		3,372,071
Test [Member]
Segment Reporting Information [Line Items]
Net sales	112,693	79,420	306,113	228,779
Depreciation expense	30,291	24,679	85,901	69,866
Gross profit	35,642	20,237	98,266	59,237
Capital additions	37,370	92,737	117,217	176,966
Property, plant and equipment, gross	1,187,768		1,187,768		1,076,513
Other [Member]
Segment Reporting Information [Line Items]
Net sales	0	0	0	0
Depreciation expense	0	0	0	0
Gross profit	0	0	0	0
Capital additions	19,758	16,698	53,129	84,965
Property, plant and equipment, gross	$ 117,958		$ 117,958		$ 150,469