The public float percentage used to determine common shares purchased as part of an Normal Course Issuer Bid.

No definition available.

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- Definition

Stock Repurchase Program [Abstract]

+ References

No definition available.

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- Definition

The number of shares authorized to be repurchased per day by an entity's Board of Directors under the stock repurchase plan.

+ References

No definition available.

+ Details

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- Definition

Face amount per share of no-par value common stock.

+ References

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- Definition

Indicates that the number of common shares permitted to be issued by an entity's charter and bylaws is unlimited. The acceptable value is "Unlimited".

+ References

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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

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.

+ References

No definition available.

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- Definition

The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

+ Details

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- Definition

Number of shares that have been repurchased and retired during the period.

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- Definition

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Common shares (Details) - USD ($) $ / shares in Units, $ in Millions		2 Months Ended	12 Months Ended
	Dec. 17, 2019	Feb. 26, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Common shares
Common Stock, No Par Value			$ 0	$ 0
Common Stock, Shares Authorized, Unlimited			Unlimited	Unlimited
Common Stock, Shares, Issued			108,675,294	108,341,738
Common Stock, Shares, Outstanding			108,675,294	108,341,738
Stock Repurchase Program
Common shares repurchased and canceled			$ 2.5	$ 16.6	$ 0.2
Common shares repurchased and canceled (in shares)			1,064,081	7,772,971
Normal Course Issuer Bid [Member]
Stock Repurchase Program
Public float amount used to determine share amount, percent	10.00%
Normal Course Issuer Bid [Member] \| Subsequent event
Stock Repurchase Program
Common shares repurchased and canceled		$ 4.1
Common shares repurchased and canceled (in shares)		1,742,919
Normal Course Issuer Bid [Member] \| Maximum
Stock Repurchase Program
Number of shares authorized for repurchase			10,578,799
Number of shares that may be purchased per day			9,243