Cash collected to be used to purchase Common Stock in future periods

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Share-based Compensation Arrangement by Share-based Payment Award, Award Expire Period, Maximum

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No definition available.

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Share-based Compensation Arrangement by Share-based Payment Award, Award Expire Period, Minimum

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Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price Discount

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No definition available.

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
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Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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No definition available.

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- Definition

Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

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- Definition

Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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-Name Accounting Standards Codification
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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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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No definition available.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Number of options outstanding, including both vested and non-vested options.

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Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

+ References

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Equity impact of the value of treasury stock (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

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-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

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Amount of stock repurchase plan authorized.

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No definition available.

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Amount remaining of a stock repurchase plan authorized.

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No definition available.

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

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-Name Regulation S-X (SX)
-Number 210
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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).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Share Capital, Option Plans and Share-Based Payments (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Jul. 28, 2015	Jun. 30, 2015
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Dividends declared per common share (in dollars per share)	$ 0.2000	$ 0.1725	$ 0.4000	$ 0.3450
Payments of dividends to shareholders	$ 24,200,000	$ 21,100,000	$ 47,528,000	$ 42,100,000
Preference shares issued (in shares)	0		0
Stock repurchased during period, shares (in shares)	225,000	0	225,000	0
Stock repurchased during the period	$ 10,600,000		$ 10,600,000
Amount authorized to be repurchased					$ 200,000,000
Common shares repurchased and cancelled during period, shares (in shares)	300,000		1,500,000
Common shares repurchased and cancelled during period, value	$ 15,500,000	$ 0	$ 65,500,000	$ 0
Remaining number of shares authorized to be repurchased	$ 134,500,000		$ 134,500,000
Options outstanding (in shares)	4,257,350		4,257,350			4,375,365
Unrecognized compensation cost relating to unvested stock awards	$ 29,400,000		$ 29,400,000
Unvested stock awards compensation cost, weighted average recognition period			2 years 3 months 19 days
Cash proceeds from exercise of options granted	2,000,000	1,300,000	$ 6,300,000	7,600,000
Tax benefit realized from exercise of options	$ 0	$ 300,000	$ 200,000	$ 800,000
Stock Options
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Options outstanding (in shares)	4,257,350		4,257,350
Common shares available for issuance (in shares)	2,904,833		2,904,833
Award vesting period			4 years
Expire period of options, minimum term			7 years
Expire period of options, maximum term			10 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Stock issued during period, shares, treasury stock reissued (in shares)	5,000		5,000
Award vesting period			3 years
Stock issued during period, treasury stock reissued	$ 100,000		$ 100,000
RSUs granted in accordance with employment agreements (in shares)	0	2,500	0	15,000
Deferred Stock Units
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
RSUs granted in accordance with employment agreements (in shares)	52,817	0	53,373	398
2015 Long Term Incentive Plan
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Stock issued during period, shares, treasury stock reissued (in shares)	202,078
Stock issued during period, treasury stock reissued	$ 5,000,000
Long Term Incentive Plan
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Stock issued during period, shares, treasury stock reissued (in shares)	207,078	355,553	207,078	355,553
Unvested stock awards compensation cost, weighted average recognition period			2 years 1 month 4 days
Compensation cost related to unvested awards not yet recognized	$ 17,600,000		$ 17,600,000
Employee Share Purchase Plan
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Cash received from employee stock purchase plan	700,000	$ 700,000	$ 1,700,000	$ 1,500,000
Minimum \| Employee Share Purchase Plan
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Awards purchase price discount			5.00%
Maximum \| Stock Options
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Award vesting period			5 years
Maximum \| Employee Share Purchase Plan
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Awards purchase price discount			15.00%
Retained Earnings
Share-based Compensation Arrangement By Share-based Payment Award [Line Items]
Common shares repurchased and cancelled during period, value	$ 13,200,000		$ 55,700,000