Borrowings (Interest Rate Swap Narrative) (Details) (Senior Notes [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014
Subsidiary, Libbey Glass [Member]
Debt Instrument [Line Items]
Interest rate	6.875%
Prior to May 15, 2015 [Member] \| Subsidiary, Libbey Glass [Member]
Debt Instrument [Line Items]
Minimum time period between redemptions	12 months
Fair Value Hedging [Member] \| Interest rate agreements [Member]
Debt Instrument [Line Items]
Derivative, notional amount	$ 45.0
Derivative, variable interest rate	5.50%
Fair Value Hedging [Member] \| Interest rate agreements [Member] \| Prior to May 15, 2015 [Member]
Debt Instrument [Line Items]
Call price of derivative, % of principal	103.00%
Fair Value Hedging [Member] \| Interest rate agreements [Member] \| Prior to May 15, 2015 [Member] \| Subsidiary, Libbey Glass [Member]
Debt Instrument [Line Items]
Minimum time period between redemptions	12 months
Designated as Hedging Instrument [Member] \| Fair Value Hedging [Member] \| Interest rate agreements [Member]
Debt Instrument [Line Items]
Derivative, notional amount	$ 40.5
Maximum [Member] \| Fair Value Hedging [Member] \| Interest rate agreements [Member] \| Prior to May 15, 2015 [Member]
Debt Instrument [Line Items]
Portion of derivative callable by counterparty, %	10.00%

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

-Sentence Column B

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Redemption, Minimum Time Period Between Redemptions

+ References

No definition available.

+ Details

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Namespace Prefix:	lby_
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Balance Type:	na
Period Type:	instant

- Definition

Derivative, Call Price, Percent of Principal

+ References

No definition available.

+ Details

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Namespace Prefix:	lby_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Derivative, Portion Callable by Counterparty, Percent

+ References

No definition available.

+ Details

Name:	lby_DerivativePortionCallableByCounterpartyPercent
Namespace Prefix:	lby_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	instant

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Variable interest rate in effect as of the balance sheet date related to the interest rate derivative.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant