| Component: (Network and Table) | |
|---|---|
| Network | 101070 - Disclosure - Long-Term Debt - Amortization of Term Loan Agreements Together with Maturities of Other Long-term Debt (Detail) (http://www.glatfelter.com/20161231/taxonomy/role/DisclosureLongTermDebtAmortizationOfTermLoanAgreementsTogetherWithMaturitiesOfOtherLongTermDebtDetail) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000041719 (http://www.sec.gov/CIK) |
| Maturities Of Long Term Debt [Abstract] | Period [Axis] |
|---|---|
2016-12-31 | |
Maturities Of Long Term Debt [Abstract] | |
2017 | |
2018 | |
2019 | |
2020 | |
2021 | |
Thereafter |