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Subsequent Events	6 Months Ended
	Jun. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On July 3, 2017, the Company elected to mandatorily redeem all of the outstanding 7.250% Perpetual Non-Cumulative Preference Shares (the “7.250% Preference Shares”) for $160.0 million. Each holder of a 7.250% Preference Share received $25 per 7.250% Preference Share, plus any declared and unpaid dividends.

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- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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