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Long-Term Debt - Additional Information (Detail) | 2 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 09, 2018 CAD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2017 CAD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 CAD ($) | Dec. 31, 2016 USD ($)
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Description of compliance with covenants |  | The senior notes require that we comply with certain financial covenants including an incurrence based test of Consolidated Interest Coverage Ratio, as defined in the senior note agreements, of greater than or equal to 2.0:1 for the most recent four consecutive fiscal quarters. In the event that our Consolidated Interest Coverage Ratio is less than 2.0:1 for the most recent four consecutive fiscal quarters the senior notes restrict our ability to incur additional indebtedness. As at December 31, 2017, our senior notes Consolidated Interest Coverage Ratio was 2.16:1. |  |  |  |  |
Maximum Consolidated Interest Coverage Ratio to incur additional indebtedness |  |  |  | 200.00% | 200.00% |  |
Senior notes Consolidated Interest Coverage Ratio |  | 216.00% |  |  |  |  |
Description of compliance with covenants |  | The senior notes also contain a restricted payments covenant that limits our ability to make payments in the nature of dividends, distributions and repurchases from shareholders. This restricted payment basket grows by, among other things, 50% of cumulative consolidated net earnings, and decreases by 100% of cumulative consolidated net losses as defined in the note agreements, and cumulative payments made to shareholders. As at December 31, 2017, the restricted payments basket was negative $213 million (2016 – negative $310 million), therefore prohibiting us from making any further dividend payments until the governing restricted payments basket once again becomes positive. No dividends have been declared or paid subsequent to December 31, 2017. |  |  |  |  |
Net restricted payments basket |  |  |  | $ (213,000,000) |  | $ (310,000,000) |
Events After Reporting Period [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Dividends paid | $ 0 |  |  |  |  |  |
Senior Credit Facility [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Borrowings maximum borrowing capacity |  |  |  |  | $ 500,000,000 |  |
Borrowings additional borrowing capacity |  |  |  | $ 300,000,000 | 250,000,000 |  |
Credit facility amount withdrawn |  |  |  |  | 0 |  | $ 0
Borrowings maximum available letters of credit |  |  |  |  | $ 200,000,000 |  |
Outstanding letters of credit |  | $ 20,900,000 | $ 41,500,000 |  |  |  |
Senior Credit Facility [Member] | Periods ending March 31, 2017 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Adjusted EBITDA to Interest expense coverage ratio |  | 125.00% |  |  |  |  |
Senior Credit Facility [Member] | Periods ending June 30, 2017 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Adjusted EBITDA to Interest expense coverage ratio |  | 125.00% |  |  |  |  |
Senior Credit Facility [Member] | Periods ending September 30, 2017 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Adjusted EBITDA to Interest expense coverage ratio |  | 125.00% |  |  |  |  |
Senior Credit Facility [Member] | Periods ending December 31, 2017 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Adjusted EBITDA to Interest expense coverage ratio |  | 150.00% |  |  |  |  |
Senior Credit Facility [Member] | Periods ending March 31, 2018 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Adjusted EBITDA to Interest expense coverage ratio |  | 150.00% |  |  |  |  |
Senior Credit Facility [Member] | Periods ending June 30, 2018 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Adjusted EBITDA to Interest expense coverage ratio |  | 200.00% |  |  |  |  |
Senior Credit Facility [Member] | Periods ending September 30, 2018 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Adjusted EBITDA to Interest expense coverage ratio |  | 200.00% |  |  |  |  |
Senior Credit Facility [Member] | Periods ending December 31, 2018 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Adjusted EBITDA to Interest expense coverage ratio |  | 200.00% |  |  |  |  |
Senior Credit Facility [Member] | Periods ending after March 30, 2019 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Adjusted EBITDA to Interest expense coverage ratio |  | 250.00% |  |  |  |  |
Senior Credit Facility [Member] | Periods ending April 1, 2019 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Adjusted EBITDA to Interest expense coverage ratio |  | 175.00% |  |  |  |  |
6.5% Senior Notes Due 2021 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Interest rate |  |  |  | 6.50% | 6.50% |  |
Maturity date |  | December 15, 2021 |  |  |  |  |
Borrowings frequency of payments |  | Interest is payable semi-annually on June 15 and December 15 of each year. |  |  |  |  |
Amount redeemed |  |  |  |  | $ 70,000,000 |  |
Repurchase price |  |  |  |  | $ 71,800,000 |  |
6.5% Senior Notes Due 2021 [Member] | Any time on or after December 15, 2019 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 101.00% | 101.00% |  |
6.5% Senior Notes Due 2021 [Member] | Bottom of Range [Member] | Precision may redeem these notes in whole or in part before December 15, 2019 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 101.083% | 101.083% |  |
6.5% Senior Notes Due 2021 [Member] | Top of Range [Member] | Precision may redeem these notes in whole or in part before December 15, 2019 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 102.167% | 102.167% |  |
7.75% Senior Notes Due 2023 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Interest rate |  |  |  | 7.75% | 7.75% |  |
Maturity date |  | December 15, 2023 |  |  |  |  |
Borrowings frequency of payments |  | Interest is payable semi-annually on June 15 and December 15 of each year. |  |  |  |  |
7.75% Senior Notes Due 2023 [Member] | Prior to December 15, 2019, Precision may redeem up to 35% of the 7.75% senior notes due 2023 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 107.75% | 107.75% |  |
Borrowings maximum percentage of principal amount redeemed |  |  |  | 35.00% | 35.00% |  |
7.75% Senior Notes Due 2023 [Member] | Prior to December 15, 2019, Precision may redeem these notes in whole or in part [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 100.00% | 100.00% |  |
7.75% Senior Notes Due 2023 [Member] | Any time on or after December 15, 2021 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 101.00% | 101.00% |  |
7.75% Senior Notes Due 2023 [Member] | Bottom of Range [Member] | Precision may redeem these notes in whole or in part at any time on or after December 15, 2019 and before December 15, 2021 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 101.938% | 101.938% |  |
7.75% Senior Notes Due 2023 [Member] | Top of Range [Member] | Precision may redeem these notes in whole or in part at any time on or after December 15, 2019 and before December 15, 2021 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 103.875% | 103.875% |  |
5.25% Senior Notes Due 2024 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Interest rate |  |  |  | 5.25% | 5.25% |  |
Maturity date |  | November 15, 2024 |  |  |  |  |
Borrowings frequency of payments |  | Interest is payable semi-annually on May 15 and November 15 of each year. |  |  |  |  |
5.25% Senior Notes Due 2024 [Member] | Prior to May 15, 2019, Precision may redeem these notes in whole or in part [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 100.00% | 100.00% |  |
5.25% Senior Notes Due 2024 [Member] | Any time on or after May 15, 2022 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 101.00% | 101.00% |  |
5.25% Senior Notes Due 2024 [Member] | Bottom of Range [Member] | Precision may redeem these notes in whole or in part at any time on or after May 15, 2019 and before May 15, 2022 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 100.875% | 100.875% |  |
5.25% Senior Notes Due 2024 [Member] | Top of Range [Member] | Precision may redeem these notes in whole or in part at any time on or after May 15, 2019 and before May 15, 2022 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 102.625% | 102.625% |  |
7.125% Senior Notes Due 2026 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Interest rate |  |  |  | 7.125% | 7.125% |  |
Maturity date |  | January 15, 2026 |  |  |  |  |
Borrowings frequency of payments |  | Interest is payable semi-annually on January 15 and July 15 of each year, commencing July 15, 2018. |  |  |  |  |
7.125% Senior Notes Due 2026 [Member] | Prior to November 15, 2020, Precision may redeem up to 35% of the 7.125% senior notes due 2026 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 107.125% | 107.125% |  |
Borrowings maximum percentage of principal amount redeemed |  |  |  | 35.00% | 35.00% |  |
7.125% Senior Notes Due 2026 [Member] | Prior to November 15, 2020, Precision may redeem these notes in whole or in part [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 100.00% | 100.00% |  |
7.125% Senior Notes Due 2026 [Member] | Any time on or after November 15, 2023 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 101.00% | 101.00% |  |
7.125% Senior Notes Due 2026 [Member] | Bottom of Range [Member] | Precision may redeem these notes in whole or in part at any time on or after November 15, 2020 and before November 15, 2022 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 101.781% | 101.781% |  |
7.125% Senior Notes Due 2026 [Member] | Top of Range [Member] | Precision may redeem these notes in whole or in part at any time on or after November 15, 2020 and before November 15, 2022 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Redemption price percentage |  |  |  | 105.344% | 105.344% |  |
6.625% Senior Notes Due 2020 [Member] |  |  |  |  |  |  |
Disclosure of long term debt [Line Items] |  |  |  |  |  |  |
Interest rate |  |  |  | 6.625% | 6.625% |  |
Maturity date |  | November 15, 2020 |  |  |  |  |
Redemption price |  |  |  |  | $ 371,800,000 |  |
Amount redeemed |  |  |  |  | $ 377,100,000 |  |

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