Quarterly Results of Operations (Unaudited) (Details) - USD ($) $ / shares in Units, $ 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
Quarterly Results of Operations (Unaudited) [Abstract]
Total net sales	$ 152,397	$ 120,871	$ 140,872	$ 136,954	$ 122,606	$ 98,327	$ 153,657	$ 169,884	$ 551,094	$ 544,474	$ 688,276
Gross profit	48,244	34,011	48,508	41,397	33,960	23,738	50,353	61,123	172,160	169,174	258,605
Net income (loss)	$ 17,100	$ 11,963	$ 17,560	$ 15,503	$ (14,758)	$ 6,781	$ 22,286	$ 24,319	$ 62,126	$ 38,628	$ 111,272
Basic earnings (loss) per share	$ 0.91	$ 0.64	$ 0.94	$ 0.83	$ (0.77)	$ 0.35	$ 1.15	$ 1.26	$ 3.32	$ 1.99	$ 5.76
Diluted earnings (loss) per share	$ 0.88	$ 0.62	$ 0.91	$ 0.81	$ (0.77)	$ 0.34	$ 1.12	$ 1.22	$ 3.21	$ 1.95	$ 5.58

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

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