v3.19.3.a.u2

Income tax expense - Deferred tax assets and liabilities (Detail) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Deferred tax assets: |  |
Loss carryforwards | $ 135.9 | $ 163.3
Capital loss carryforwards | 35.8 | 34.4
Interest expense limitation carryforwards | 9.7 | 10.9
Finance and share issuance costs | 0.1 | 0.5
Tax Credits | 1.4 | 1.4
Stock-based compensation | 2.4 | 2.9
Derivative contracts | 5.7 | 3.2
Other long-term notes |  | 1.5
Other | 0.9 |
Total deferred tax assets | 191.9 | 218.1
Less: Valuation allowance | (145.4) | (139.7)
Net deferred tax assets | 46.5 | 78.4
Deferred tax liabilities: |  |
Intangible assets | (21.9) | (30.0)
Property, plant and equipment | (31.2) | (41.9)
Basis difference in joint ventures | (5.4) | (15.5)
Other long-term investments | (1.3) |
Total deferred tax liabilities | (59.8) | (87.4)
Net deferred tax liability | (13.3) | (9.0)
Net deferred tax asset |  | 9.0
US |  |
Deferred tax liabilities: |  |
Net deferred tax liability | (23.7) | (16.0)
Canada. |  |
Deferred tax liabilities: |  |
Net deferred tax asset | $ 10.4 | $ 7.0

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