Statements of Income and Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Total net sales	$ 688,276	$ 491,824	$ 328,816
Cost of products sold	429,671	312,871	217,058
Gross profit	258,605	178,953	111,758
Operating expenses:
Selling	48,706	38,363	28,691
General and administrative	35,394	29,231	20,970
Other operating (income) expenses, net	(401)	293	(319)
Total operating expenses	83,699	67,887	49,342
Operating income	174,906	111,066	62,416
Other income:
Royalty income	658	824	873
Interest income	4	34	29
Interest expense	(135)	(95)	(110)
Other (expense) income, net	(201)	280	308
Total other income, net	326	1,043	1,100
Income before income taxes	175,232	112,109	63,516
Income taxes	63,960	41,480	23,501
Net income	111,272	70,629	40,015
Other comprehensive income (loss), net of tax:
Defined benefit pension plans	10,240	(2,077)	(7,895)
Comprehensive income	121,512	68,552	32,120
Basic Earnings Per Share	$ 5.76	$ 3.69	$ 2.12
Fully Diluted Earnings Per Share	$ 5.58	$ 3.60	$ 2.09
Cash Dividends Per Share	$ 2.12	$ 5.80	$ 0.43
Firearms [Member]
Segment Reporting Information [Line Items]
Total net sales	678,552	484,933	324,200
Other income:
Income before income taxes	177,736	113,660	66,484
Net castings sales [Member]
Segment Reporting Information [Line Items]
Total net sales	$ 9,724	$ 6,891	$ 4,616