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Noncontrolling Interests (Narrative) (Details) (USD $)			0 Months Ended				1 Months Ended	3 Months Ended		9 Months Ended									1 Months Ended					0 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Dec. 01, 2013 Angus	Sep. 30, 2014 Angus	Dec. 31, 2013 Angus	Sep. 30, 2013 Angus	Feb. 28, 2014 DaVinciRe	Sep. 30, 2014 DaVinciRe	Sep. 30, 2013 DaVinciRe	Sep. 30, 2014 DaVinciRe	Sep. 30, 2013 DaVinciRe	Jul. 02, 2014 DaVinciRe	Jun. 30, 2014 DaVinciRe	Jan. 31, 2014 DaVinciRe	Jan. 03, 2014 DaVinciRe	Dec. 31, 2013 DaVinciRe	Jan. 02, 2013 DaVinciRe	Dec. 31, 2012 DaVinciRe	Jan. 31, 2014 DaVinciRe Redeemable Noncontrolling Interest	Jan. 31, 2013 DaVinciRe Redeemable Noncontrolling Interest	Jul. 02, 2014 DaVinciRe Redeemable Noncontrolling Interest	Sep. 30, 2013 DaVinciRe Redeemable Noncontrolling Interest	Sep. 30, 2014 DaVinciRe Redeemable Noncontrolling Interest Maximum	Jun. 01, 2013 Medici	Sep. 30, 2014 Medici	Sep. 30, 2013 Medici	Sep. 30, 2014 Medici	Sep. 30, 2013 Medici	Dec. 31, 2013 Medici	Sep. 30, 2013 Angus Fund RRV U.S. Holdings LLC	Sep. 30, 2013 Angus Fund RenTech U.S. Holdings LLC
Redeemable Noncontrolling Interest [Line Items]
Parent company ownership in redeemable noncontrolling interest								23.40%		23.40%		23.40%	26.50%		26.50%	27.30%	32.90%	30.80%							49.60%		49.60%		73.90%	1.10%	35.00%
Share repurchase requests, limit																							25.00%
Redeemable noncontrolling interest, net redemptions																			$ 300,000,000	$ 150,000,000
Redeemable noncontrolling interest, reserve holdback														60,000,000						20,500,000
Proceeds from sale of partial interest in consolidated subsidiary																					38,900,000	77,400,000
Issuance of equity to third party investors								38,854,000	583,000	48,576,000	55,510,000														0	5,000,000	57,084,000	13,000,000
Redeemable Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests, Reserve Holdback Payments							30,000,000
Noncontrolling Interest, Redemption Provision, Notice Period																											30 days
Redemption of shares from redeemable noncontrolling interest								857,000	1,095,000	220,602,000	187,989,000													1,325,000	1,200,000	0	3,075,000	0
Noncontrolling Interest, Increase from Subsidiary Equity Issuance																								37,200,000			57,100,000
Investments in subsidiaries	0	0																												55,000	2,000,000
Non Cash Transfer To Acquire Equity Method Investments			2,300,000
Equity Method Investment, Ownership Percentage				40.40%	42.50%	38.80%
Goodwill, Acquired During Period			$ 1,705,000

X

- Definition

This item limits the aggregate of all share repurchase requests to 25% of DaVinciRe's capital in any given year and satisfying all applicable regulatory requirements. If total shareholder requests exceed 25% of DaVinciRe's capital, the number of shares repurchased will be reduced among the requesting shareholders pro-rata, based on the amounts desired to be repurchased.

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Non Cash Transfer To Acquire Equity Method Investments

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Noncontrolling Interest, Redemption Provision, Notice Period

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Proceeds from Divestiture of Partial Interest in Consolidated Subsidiaries

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Reserve holdback.

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Redeemable Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests, Reserve Holdback Payments

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Represents a sale (new stock issuance) by a subsidiary to noncontrolling interests (third parties, parties directly or indirectly unrelated to parent) during the period. The capital transaction by subsidiary does not result in a loss of control by the parent, but does effect a change in total (consolidated) equity attributable to the parent.

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The increase (decrease) during the period impacting the parent's ownership interest in a subsidiary as it relates to the total (consolidated) equity attributable to the parent. The changes to the parent's ownership interest in a subsidiary represented by this element did not arise in a deconsolidation of the subsidiary from the consolidated financial statements.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Amount of increase in noncontrolling interest from subsidiary issuance of equity interests to noncontrolling interest holders.

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