Fair Value Additional (Details) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Value of Financial Instruments
Term Loan B, Carrying Value		$ 406,585	$ 387,685
Senior Loans | Subsidiary, Libbey Glass
Value of Financial Instruments
Term Loan B, Carrying Value	[1]	382,400	384,600
Level 2 | Senior Loans | Subsidiary, Libbey Glass
Value of Financial Instruments
Term Loan B, Fair Value		$ 375,708	$ 370,178

[1] We have entered into an interest rate swap that effectively fixes a series of our future interest payments on a portion of the Term Loan B debt. See interest rate swap in note 8 for additional details. The Term Loan B floating interest rate was 5.05 percent at June 30, 2018.