Debt (Narrative) (Details) $ in Thousands, € in Millions, CAD in Millions | 9 Months Ended | | |
Sep. 30, 2015CAD | Sep. 30, 2015EUR (€) | Sep. 30, 2015USD ($) | Dec. 31, 2014CAD | Dec. 31, 2014EUR (€) |
Senior Notes [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt, offering date | Nov. 26, 2014 | | | | |
Issued price percentage of principal amount | 100.00% | 100.00% | 100.00% | | |
Senior Note Redemption Notice Minimum Days | 30 | | | | |
Senior Note Redemption Notice Maximum Days | 60 | | | | |
Payment-in-kind note [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt, face amount | | € 10 | | | |
Debt Instrument Repurchase Date | Apr. 20, 2015 | | | | |
Debt Instrument, Repurchase Amount | | € 10 | $ 10,763 | | |
2019 Senior Notes [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt, face amount | $ | | | $ 250,000 | | |
Debt instrument interest rate | 7.00% | 7.00% | 7.00% | | |
Debt, maturity date | Dec. 1, 2019 | | | | |
2022 Senior Notes [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt, face amount | $ | | | $ 400,000 | | |
Debt instrument interest rate | 7.75% | 7.75% | 7.75% | | |
Debt, maturity date | Dec. 1, 2022 | | | | |
Celgar Credit Facility - C$40.0 Million [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt, maturity date | May 1, 2019 | | | | |
Maximum borrowing capacity | CAD | CAD 40 | | | CAD 40 | |
Letters of Credit Outstanding, Amount | 1.7 | | $ 1,268 | | |
Remaining borrowing capacity | CAD 38.3 | | $ 28,596 | | |
Stendal Credit Facility - EUR 75.0 Million [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Varying basis spread | 3.50% | | | | |
Description of variable basis spread | Euribor | | | | |
Debt Instrument, Interest Rate at Period End | 3.50% | 3.50% | 3.50% | | |
Debt, maturity date | Oct. 1, 2019 | | | | |
Maximum borrowing capacity | | € 75 | | | € 75 |
Amount drawn | | 18 | $ 20,092 | | |
Remaining borrowing capacity | | 57 | 63,623 | | |
Rosenthal Credit Facility - EUR 25.0 Million [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Varying basis spread | 3.50% | | | | |
Description of variable basis spread | Euribor | | | | |
Debt, maturity date | Oct. 1, 2016 | | | | |
Debt Instrument, Amount Of Debt Supporting Bank Guarantees | | 0.4 | 446 | | |
Maximum borrowing capacity | | 25 | | | 25 |
Remaining borrowing capacity | | 24.6 | 27,459 | | |
Rosenthal Credit Facility - EUR 5.0 Million [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Varying basis spread | 3.50% | | | | |
Description of variable basis spread | three-month Euribor | | | | |
Debt, maturity date | Dec. 1, 2015 | | | | |
Debt Instrument, Amount Of Debt Supporting Bank Guarantees | | 1.3 | 1,396 | | |
Maximum borrowing capacity | | 5 | | | € 5 |
Remaining borrowing capacity | | € 3.7 | $ 4,185 | | |
Canadian Dollar Borrowings Rate Option 1 [Member] | Celgar Credit Facility - C$40.0 Million [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Varying basis spread | 1.50% | | | | |
Description of variable basis spread | bankers acceptance | | | | |
Canadian Dollar Borrowings Rate Option 2 [Member] | Celgar Credit Facility - C$40.0 Million [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Description of variable basis spread | Canadian prime | | | | |
US Dollar Borrowings Rate Option 1 [Member] | Celgar Credit Facility - C$40.0 Million [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Varying basis spread | 1.50% | | | | |
Description of variable basis spread | LIBOR | | | | |
US Dollar Borrowings Rate Option 2 [Member] | Celgar Credit Facility - C$40.0 Million [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Description of variable basis spread | U.S. base | | | | |
Twelve month period beginning Dec 1, 2016 [Member] | 2019 Senior Notes [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt Instrument Redemption Price Percentage | 103.50% | | | | |
Twelve month period beginning Dec 1, 2017 [Member] | 2019 Senior Notes [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt Instrument Redemption Price Percentage | 101.75% | | | | |
Twelve month period beginning Dec 1, 2017 [Member] | 2022 Senior Notes [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt Instrument Redemption Price Percentage | 105.813% | | | | |
Twelve month period beginning Dec 1, 2018 and thereafter [Member] | 2019 Senior Notes [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt Instrument Redemption Price Percentage | 100.00% | | | | |
Twelve month period beginning Dec 1, 2018 [Member] | 2022 Senior Notes [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt Instrument Redemption Price Percentage | 103.875% | | | | |
Twelve month period beginning Dec 1, 2019 [Member] | 2022 Senior Notes [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt Instrument Redemption Price Percentage | 101.938% | | | | |
Twelve month period beginning Dec 1, 2020 and thereafter [Member] | 2022 Senior Notes [Member] | | | | | |
Debt Instrument [Line Items] | | | | | |
Debt Instrument Redemption Price Percentage | 100.00% | | | | |