Redeemable Noncontrolling Interests - MT. Logan RE (Narrative) (Details) - Jun. 30, 2015 - Logan Re [Member] - USD ($) $ in Thousands	Total
Redeemable Noncontrolling Interest [Line Items]
Voting common share percentage	100.00%
Investment, redeemable preferred shares, segregated accounts	$ 50,000

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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