XML 82 R71.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Subsequent Events - Declaration of Dividends (Details) - $ / shares |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Aug. 03, 2017 | Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Subsequent Event [Line Items] |  |  |  |  |
Quarterly dividend (in dollars per share) |  | $ 0.05 | $ 0.05 | $ 0.1 | $ 0.1
Class A common shares |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly dividend (in dollars per share) |  | 0.05 | 0.05 |  |
Class B common shares |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly dividend (in dollars per share) |  | 0.05 | 0.05 |  |
5.0% Series A Participating Preferred Shares |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) |  | $ 0.3125 | 0.3125 |  |
Preferred stock, dividend rate, percentage |  | 5.00% |  | 5.00% |
5.0% Series B Participating Preferred Shares |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) |  | $ 0.3125 | 0.3125 |  |
Preferred stock, dividend rate, percentage |  | 5.00% |  | 5.00% |
5.5% Series C Participating Preferred Shares |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) |  | $ 0.34375 | 0.34375 |  |
Preferred stock, dividend rate, percentage |  | 5.50% |  | 5.50% |
Series D Perpetual Preferred Shares |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) |  | $ 0.40625 | $ 0.17153 |  |
Preferred stock, dividend rate, percentage |  | 6.50% |  |  |
Series E Perpetual Preferred Shares |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) |  | $ 0.39688 |  |  |
Preferred stock, dividend rate, percentage |  | 6.35% |  |  |
Series F Perpetual Preferred Shares |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) |  | $ 0.27335 |  |  |
Subsequent Event | Class A common shares | Dividend Declared |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly dividend (in dollars per share) | $ 0.05 |  |  |  |
Subsequent Event | Class B common shares | Dividend Declared |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly dividend (in dollars per share) | 0.05 |  |  |  |
Subsequent Event | 5.0% Series A Participating Preferred Shares | Dividend Declared |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) | $ 0.3125 |  |  |  |
Preferred stock, dividend rate, percentage | 5.00% |  |  |  |
Subsequent Event | 5.0% Series B Participating Preferred Shares | Dividend Declared |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) | $ 0.3125 |  |  |  |
Preferred stock, dividend rate, percentage | 5.00% |  |  |  |
Subsequent Event | 5.5% Series C Participating Preferred Shares | Dividend Declared |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) | $ 0.34375 |  |  |  |
Preferred stock, dividend rate, percentage | 5.50% |  |  |  |
Subsequent Event | Series D Perpetual Preferred Shares | Dividend Declared |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) | $ 0.40625 |  |  |  |
Preferred stock, dividend rate, percentage | 6.50% |  |  |  |
Subsequent Event | Series E Perpetual Preferred Shares | Dividend Declared |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) | $ 0.39688 |  |  |  |
Preferred stock, dividend rate, percentage | 6.35% |  |  |  |
Subsequent Event | Series F Perpetual Preferred Shares | Dividend Declared |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) | $ 0.36719 |  |  |  |
Preferred stock, dividend rate, percentage | 5.875% |  |  |  |
Subsequent Event | Series G, Preferred Perpetual Shares | Dividend Declared |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Quarterly preferred dividend (in dollars per share) | $ 0.30191 |  |  |  |
Preferred stock, dividend rate, percentage | 5.875% |  |  |  |

X
- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate dividends declared during the period for each share of preferred stock outstanding. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendsPerShareDeclared
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesAPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesBPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesCPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesDPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesEPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesFPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=us-gaap_DividendDeclaredMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesGPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |