Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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The number of real estate properties owned as of the balance sheet date.

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Amount of long-term debt classified as other.

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Other Borrowings (Narrative) (Details) $ in Millions	1 Months Ended						12 Months Ended	24 Months Ended	48 Months Ended	54 Months Ended	62 Months Ended	65 Months Ended
Other Borrowings (Narrative) (Details) $ in Millions	May 31, 2019 CAD ($)	Feb. 28, 2019 CAD ($)	Jun. 30, 2018 CAD ($)	Dec. 31, 2017 CAD ($)	Dec. 31, 2015 CAD ($)	Dec. 31, 2014 CAD ($)	Dec. 31, 2019 USD ($) building	Dec. 31, 2015 CAD ($)	Dec. 31, 2017 CAD ($)	Jun. 30, 2018 CAD ($)	Feb. 28, 2019 CAD ($)	May 31, 2019 CAD ($)	Dec. 31, 2018 USD ($)	Sep. 18, 2018 USD ($)	Dec. 15, 2014 USD ($)
Debt Instrument [Line Items]
Outstanding borrowings							$ 123,090,000						$ 144,461,000
Short-term borrowings							20,520,000						50,593,000
Sweep accounts							29,696,000
Other borrowings							46,447,000						47,722,000
Secured borrowings							$ 228,117,000						151,079,000
Credit Agreement
Debt Instrument [Line Items]
Borrowing capacity														$ 200,000,000.0	$ 150,000,000.0
Commitment fee (as a percent)							0.20%
Credit Agreement \| Base Rate Loan \| Federal funds rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate							0.50%
Credit Agreement \| Base Rate Loan \| Eurodollar rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate							1.00%
Securities Sold under Agreements to Repurchase
Debt Instrument [Line Items]
Securities sold under repurchase agreements							$ 20,520,000						50,600,000
Fixed Rate Promissory Note
Debt Instrument [Line Items]
Number of properties securing promissory note \| building							2
Other borrowings							$ 46,400,000
Fixed rate							3.36%
Receivables Purchase Agreement
Debt Instrument [Line Items]
Fixed rate							2.729%
Proceeds from issuance of debt			$ 20	$ 10	$ 10	$ 150		$ 160	$ 170	$ 190
Secured borrowings							$ 215,500,000						$ 139,300,000
Secured Debt
Debt Instrument [Line Items]
Secured borrowings							12,700,000
Term Facility
Debt Instrument [Line Items]
Borrowing capacity															75,000,000.0
Term Facility \| Credit Agreement
Debt Instrument [Line Items]
Borrowing capacity														150,000,000.0
Outstanding borrowings							$ 123,100,000
Term Facility \| Credit Agreement \| Base Rate Loan \| Base rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate							0.75%
Term Facility \| Credit Agreement \| Eurodollar Rate Loan \| Eurodollar rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate							1.25%
Revolving Credit Facility
Debt Instrument [Line Items]
Borrowing capacity															$ 75,000,000.0
Revolving Credit Facility \| Credit Agreement
Debt Instrument [Line Items]
Borrowing capacity														$ 50,000,000.0
Outstanding borrowings							$ 0
Borrowed under credit facility							35,000,000.0
Repayments under credit facility							$ 35,000,000
Revolving Credit Facility \| Credit Agreement \| Base Rate Loan \| Base rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate							0.50%
Revolving Credit Facility \| Credit Agreement \| Eurodollar Rate Loan \| Eurodollar rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate							1.25%
Receivables Purchase Agreement \| Secured Debt
Debt Instrument [Line Items]
Proceeds from issuance of debt	$ 70	$ 20									$ 210	$ 280