Income Taxes - Federal Statutory Corporate Tax Rate Reconciles to Our Effective Income Tax Rate (Detail)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Statutory U.S. federal tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal tax benefit	(2.10%)	(1.20%)	0.50%
Foreign earnings taxed at lower effective rates	(15.10%)	(8.80%)	(0.20%)
U.S. tax on foreign earnings	3.90%	4.70%	(0.60%)
Impairment			(20.00%)
Reorganization tax benefit	(0.90%)	(6.70%)
Net change in valuation allowance	(5.00%)	22.40%	(2.20%)
Net change in unrecognized tax benefits	(8.70%)see_NetChangeInUnrecognizedTaxBenefits	2.00%see_NetChangeInUnrecognizedTaxBenefits	1.90%see_NetChangeInUnrecognizedTaxBenefits
Other	(3.70%)	(0.30%)	(0.30%)
Effective income tax rate	3.40%	47.10%	14.10%

Effective income tax rate reconciliation change in valuation allowance.

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Net change in unrecognized tax benefits.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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