v3.19.3.a.u2

Convertible debentures (Details) $ in Millions, $ in Millions	Dec. 31, 2019 CAD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
6.00% Debenture Due January 31, 2025
Convertible debentures
Long-term Debt, Gross		$ 88.5	$ 84.3
6.00% Debenture due December 2019
Convertible debentures
Long-term Debt, Gross			18.1
Convertible Debentures
Convertible debentures
Less: unamortized deferred financing costs		3.8	4.6
Less: Unamortized discount		(3.6)	(4.0)
Total current and long-term convertible debentures		$ 81.1	$ 93.8
Convertible Debentures | 6.00% Debenture Due January 31, 2025
Convertible debentures
Convertible debentures stated interest rate percentage	6.00%	6.00%
Long-term Debt, Gross	$ 115.0
Convertible Debentures | 6.00% Debenture due December 2019
Convertible debentures
Convertible debentures stated interest rate percentage	6.00%	6.00%
Long-term Debt, Gross	$ 24.7

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- Definition

Including the current and noncurrent portions, the carrying value of convertible subordinated debt, as of the balance sheet date, initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. This form of debt can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder, and places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt discount (premium).

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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