Business segment information - Summary of Net Sales by Geographic Destination (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Schedule Of Net Sales By Geographical Segment [Line Items] | |||||||||||
Net Sales | $ 112,035 | $ 114,752 | $ 119,492 | $ 116,041 | $ 123,085 | $ 117,306 | $ 116,670 | $ 113,060 | $ 462,320 | $ 470,121 | $ 460,629 |
Domestic [Member] | U.S. [Member]
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Schedule Of Net Sales By Geographical Segment [Line Items] | |||||||||||
Net Sales | 341,015 | 329,625 | 339,781 | ||||||||
International [Member]
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Schedule Of Net Sales By Geographical Segment [Line Items] | |||||||||||
Net Sales | 121,305 | 140,496 | 120,848 | ||||||||
International [Member] | U.K. [Member]
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Schedule Of Net Sales By Geographical Segment [Line Items] | |||||||||||
Net Sales | 8,628 | 8,240 | 12,509 | ||||||||
International [Member] | Italy [Member]
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Schedule Of Net Sales By Geographical Segment [Line Items] | |||||||||||
Net Sales | 18,242 | 20,700 | 19,831 | ||||||||
International [Member] | Brazil [Member]
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Schedule Of Net Sales By Geographical Segment [Line Items] | |||||||||||
Net Sales | 38,015 | 48,851 | 29,067 | ||||||||
International [Member] | Others [Member]
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Schedule Of Net Sales By Geographical Segment [Line Items] | |||||||||||
Net Sales | $ 56,420 | $ 62,705 | $ 59,441 |