Geographic Information - Net Sales and Property and Equipment by Geographical Information (Detail) - USD ($)
$ in Millions |
3 Months Ended |
12 Months Ended |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
Sep. 30, 2014 |
Jun. 30, 2014 |
Mar. 31, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Information About Revenue And Geographic Areas [Line Items] |
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| Net sales |
$ 287.0
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$ 336.5
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$ 360.2
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$ 365.1
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$ 373.5
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$ 414.8
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$ 443.5
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$ 420.1
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$ 1,348.8
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$ 1,651.9
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$ 1,732.4
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| Net property and equipment |
429.5
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479.7
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429.5
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479.7
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| Germany |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net property and equipment |
212.1
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237.9
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212.1
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237.9
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| Canada |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net property and equipment |
53.8
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61.8
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53.8
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61.8
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| Belgium |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net property and equipment |
80.1
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88.8
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80.1
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88.8
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| Norway |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net property and equipment |
69.5
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82.3
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69.5
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82.3
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| Other |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net property and equipment |
$ 14.0
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$ 8.9
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14.0
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8.9
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| Point of origin | Reportable Geographical Components | Germany |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net sales |
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690.0
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844.1
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915.8
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| Point of origin | Reportable Geographical Components | United States |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net sales |
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657.8
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783.1
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830.4
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| Point of origin | Reportable Geographical Components | Canada |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net sales |
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216.9
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252.3
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246.5
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| Point of origin | Reportable Geographical Components | Belgium |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net sales |
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198.8
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249.3
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254.6
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| Point of origin | Reportable Geographical Components | Norway |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net sales |
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183.5
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256.8
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261.2
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| Point of origin | Eliminations |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net sales |
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(598.2)
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(733.7)
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(776.1)
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| Point of destination | Europe |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net sales |
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700.4
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882.9
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904.6
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| Point of destination | North America |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net sales |
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421.4
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544.3
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575.7
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| Point of destination | Other |
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| Information About Revenue And Geographic Areas [Line Items] |
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| Net sales |
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$ 227.0
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$ 224.7
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$ 252.1
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