Borrowings (Other Borrowings Narrative) (Details)	12 Months Ended				0 Months Ended									0 Months Ended				0 Months Ended		1 Months Ended								0 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 10, 2014 Promissory Note USD ($)	Dec. 31, 2014 Promissory Note USD ($)	Dec. 31, 2013 Promissory Note USD ($)	Sep. 30, 2001 Promissory Note USD ($)	Dec. 31, 2014 Libbey Glass and Libbey Europe ABL Facility Letter of Credit [Member] USD ($)	Dec. 31, 2014 Libbey Glass and Libbey Europe ABL Facility Line of Credit USD ($)	Dec. 31, 2013 Libbey Glass and Libbey Europe ABL Facility Line of Credit USD ($)	Dec. 31, 2014 Libbey Glass and Libbey Europe ABL Facility Line of Credit USD ($)	Dec. 31, 2013 Libbey Glass and Libbey Europe ABL Facility Line of Credit USD ($)	Jan. 23, 2006 Libbey China RMB Loan Contract Construction Loans USD ($)	Jan. 23, 2006 Libbey China RMB Loan Contract Construction Loans CNY	Dec. 31, 2013 Libbey China RMB Loan Contract Construction Loans USD ($)	Dec. 31, 2013 Libbey China RMB Loan Contract Construction Loans CNY	Aug. 14, 2013 Libbey Portugal BES Euro Line Line of Credit USD ($)	Aug. 14, 2013 Libbey Portugal BES Euro Line Line of Credit EUR (€)	Jan. 31, 2007 Libbey Portugal BES Euro Line Line of Credit USD ($)	Jan. 31, 2007 Libbey Portugal BES Euro Line Line of Credit EUR (€)	Dec. 31, 2014 Libbey Portugal AICEP Loan Loans Payable USD ($)	Dec. 31, 2014 Libbey Portugal AICEP Loan Loans Payable EUR (€)	Dec. 31, 2013 Libbey Portugal AICEP Loan Loans Payable USD ($)	Dec. 31, 2014 Notes Payable USD ($)	Dec. 31, 2014 Notes Payable EUR (€)	Dec. 31, 2013 Notes Payable USD ($)	Sep. 02, 2013 Loans Payable Libbey China RMB Working Capital Loan USD ($)	Sep. 02, 2013 Loans Payable Libbey China RMB Working Capital Loan CNY	Dec. 31, 2014 Loans Payable Libbey China RMB Working Capital Loan	Jul. 24, 2014 Loans Payable Libbey China RMB Working Capital Loan USD ($)	Jul. 24, 2014 Loans Payable Libbey China RMB Working Capital Loan CNY	Jul. 14, 2014 Loans Payable Libbey China RMB Working Capital Loan
Debt Instrument [Line Items]
Debt instrument, face amount								$ 2,700,000						$ 40,900,000	250,000,000							$ 3,800,000	€ 3,200,000					$ 5,200,000	31,500,000		$ 3,300,000	20,000,000
Interest rate						6.00%																0.00%	0.00%							6.78%			6.30%
Repayment of Promissory Note					400,000
Total borrowings	444,904,000	413,227,000				0	681,000					0	0			9,500,000	60,000,000					3,846,000		2,389,000	0		0
Line of credit facility, maximum borrowing capacity									30,000,000	100,000,000										15,100,000	11,000,000					1,000,000
Repayments of Lines of Credit	83,000,000	51,000,000	0															4,500,000	3,300,000
Line of credit facility, amount outstanding									6,800,000
Line of credit facility, remaining borrowing capacity										82,300,000	70,500,000
Line of credit facility, interest rate at period end																									5.80%	5.80%
Debt instrument, term														8 years	8 years					7 years	7 years							364 days	364 days
Cash on hand	$ 60,044,000	$ 42,208,000	$ 67,208,000	$ 58,291,000