Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Jun. 30, 2014
Segment Reporting Information [Line Items]
Net sales	$ 222,190	$ 222,330	$ 671,220	$ 663,870	$ 10,000
Operating profit (loss)	21,560	20,520	63,790	70,000
Packaging [Member]
Segment Reporting Information [Line Items]
Net sales	87,930	89,320	256,470	257,000
Operating profit (loss)	21,870	20,770	60,090	59,670
Aerospace [Member]
Segment Reporting Information [Line Items]
Net sales	45,380	27,410	134,340	86,420
Operating profit (loss)	7,110	3,870	22,410	14,390
Energy [Member]
Segment Reporting Information [Line Items]
Net sales	51,600	50,290	152,910	155,390
Operating profit (loss)	(3,560)	(1,100)	(10,390)	870
Engineered Components [Member]
Segment Reporting Information [Line Items]
Net sales	37,280	55,310	127,500	165,060
Operating profit (loss)	4,380	8,090	16,570	24,920
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating profit (loss)	$ (8,240)	$ (11,110)	$ (24,890)	$ (29,850)