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Selling costs incurred to dispose of the discontinued operations.

No definition available.

Name:	bel_DiscontinuedOperationsCoststoSell
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Data Type:	xbrli:monetaryItemType
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For the disposal group, including a component of the entity (discontinued operation), this element represents the value of net assets before adjustments.

No definition available.

Name:	bel_DisposalGroupIncludingDiscontinuedOperationNetAssetsBeforeAdjustments
Namespace Prefix:	bel_
Data Type:	xbrli:monetaryItemType
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For the disposal group, including a component of the entity (discontinued operation), this element represents the net working capital surplus or deficit.

No definition available.

Name:	bel_DisposalGroupIncludingDiscontinuedOperationNetWorkingCapitalSurplusDeficit
Namespace Prefix:	bel_
Data Type:	xbrli:monetaryItemType
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For the disposal group, including a component of the entity (discontinued operation), this element represents the working capital adjustments.

No definition available.

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Represents the proceeds from the divestiture of business after deduction of selling costs.

No definition available.

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Amount classified as assets attributable to disposal group held for sale or disposed of.

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No definition available.

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No definition available.

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Amount classified as deferred tax liabilities attributable to disposal group held for sale or disposed of.

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Amount of foreign currency translation gain (loss) in the disposal group, including discontinued operation, recognized in the statement of income as a result of the sale or complete or substantially complete liquidation of an investment in a foreign entity.

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Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of.

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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