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Operating Segment Information (Schedule of Operating Segment Financial Information) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Net Sales	$ 152,397	$ 120,871	$ 140,872	$ 136,954	$ 122,606	$ 98,327	$ 153,657	$ 169,884	$ 551,094	$ 544,474	$ 688,276
Income (Loss) Before Income Taxes									96,100	57,240	175,232
Identifiable Assets	315,883				254,382				315,883	254,382	277,118
Depreciation									35,438	35,915	19,576
Payments to Acquire Property, Plant, and Equipment									28,705	45,571	54,616
Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Net Sales									(31,585)	(34,095)	(32,794)
Firearms [Member]
Segment Reporting Information [Line Items]
Net Sales									544,850	542,267	678,552
Income (Loss) Before Income Taxes									98,565	57,525	177,736
Identifiable Assets	221,670				211,338				221,670	211,338	201,660
Depreciation									32,409	33,594	18,679
Payments to Acquire Property, Plant, and Equipment									26,246	39,511	51,536
Castings [Member]
Segment Reporting Information [Line Items]
Net Sales									6,244	2,207	9,724
Income (Loss) Before Income Taxes									(3,407)	(1,294)	(3,866)
Identifiable Assets	15,289				16,772				15,289	16,772	11,402
Depreciation									3,029	2,321	897
Payments to Acquire Property, Plant, and Equipment									2,459	6,060	3,080
Castings [Member] | Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Net Sales									(31,585)	(34,095)	(32,794)
Castings [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Net Sales									37,829	36,302	42,518
Corporate [Member]
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes									942	1,009	1,362
Identifiable Assets	$ 78,924				$ 26,272				$ 78,924	$ 26,272	$ 64,056

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