Capital Stock	3 Months Ended
Feb. 28, 2017
Equity [Abstract]
Capital Stock	Capital Stock Stock Purchase Plan The Company has a share repurchase program (“Stock Purchase Plan”), under which it is authorized to purchase up to $530.0 million of its outstanding Class A common shares. The timing and amount of any shares repurchased under the Stock Purchase Plan will depend on a variety of factors, including price, corporate and regulatory requirements, capital availability and other market conditions. The Stock Purchase Plan may be suspended or discontinued at any time without prior notice. No shares have been or will be knowingly purchased from Company insiders or their affiliates. Since inception of the Plan through February 28, 2017, the Company has purchased 8,802,973 shares of its Class A common shares, for a total of approximately $326.4 million. We purchased 80,900 shares of our Class A common shares during the three month period ended February 28, 2017, at an average cost of approximately $37.23 per share (including commissions), for a total of approximately $3.0 million. These transactions occurred in open market purchases and pursuant to a trading plan under Rule 10b5-1. At February 28, 2017, the Company had approximately $203.6 million remaining repurchase authority under the current Stock Purchase Plan.

Capital Stock

3 Months Ended

Feb. 28, 2017

Stock Purchase Plan

The Company has a share repurchase program (“Stock Purchase Plan”), under which it is authorized to purchase up to

$530.0 million of its outstanding Class A common shares. The timing and amount of any shares repurchased under the Stock

Purchase Plan will depend on a variety of factors, including price, corporate and regulatory requirements, capital availability

and other market conditions. The Stock Purchase Plan may be suspended or discontinued at any time without prior notice. No

shares have been or will be knowingly purchased from Company insiders or their affiliates.

Since inception of the Plan through February 28, 2017, the Company has purchased 8,802,973 shares of its Class A common

shares, for a total of approximately $326.4 million. We purchased 80,900 shares of our Class A common shares during the three month period ended February 28, 2017, at an average cost of approximately $37.23 per share (including commissions), for a total of approximately $3.0 million. These transactions occurred in open market purchases and pursuant to a trading

plan under Rule 10b5-1. At February 28, 2017, the Company had approximately $203.6 million remaining repurchase authority under the current Stock Purchase Plan.