Borrowings (Debt Schedule) (Details) $ in Thousands, € in Millions		Dec. 31, 2017 USD ($)	Dec. 31, 2017 EUR (€)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Total borrowings		$ 387,685		$ 412,320
Less — unamortized discount and finance fees		3,295		4,480
Total borrowings — net		384,390		407,840
Less — long term debt due within one year		7,485		5,009
Total long-term portion of borrowings — net		376,905		402,831
Libbey Glass and Libbey Europe | ABL Facility | Line of Credit
Debt Instrument [Line Items]
Total borrowings	[1]	$ 0		$ 0
Libbey Glass | Senior Loans
Debt Instrument [Line Items]
Interest rate		4.43%	4.43%	3.75%
Total borrowings	[2]	$ 384,600		$ 409,000
Libbey Portugal | AICEP Loan | Loans Payable
Debt Instrument [Line Items]
Interest rate		0.00%	0.00%
Total borrowings		$ 3,085	€ 2.6	$ 3,320

[1] Maturity date will be January 9, 2021 if Term Loan B is not refinanced by this date.

[2] See interest rate swap under "Term Loan B" below and note 12.