Acquisition of Platinum Intangible Assets (Details) (Platinum, USD $) In Thousands, unless otherwise specified	1 Months Ended	0 Months Ended
Mar. 31, 2015	Mar. 02, 2015
Business Acquisition [Line Items]
Finite lived intangible assets acquired		$ 75,200
Indefinite lived intangible assets acquired		8,400
Identifiable intangible assets, before amortization, at March 2, 2015		83,600
Amortization (from March 2, 2015 through March 31, 2015)	(1,846)us-gaap_AmortizationOfIntangibleAssets
Net identifiable intangible assets at March 31, 2015 related to the acquisition of Platinum	81,754
Insurance licenses
Business Acquisition [Line Items]
Indefinite lived intangible assets acquired		8,400
Key non-contractual relationships
Business Acquisition [Line Items]
Finite lived intangible assets acquired		30,400
Useful life		10 years
Value of business acquired
Business Acquisition [Line Items]
Finite lived intangible assets acquired		20,200
Useful life		2 years
Renewal rights
Business Acquisition [Line Items]
Finite lived intangible assets acquired		15,800
Useful life		15 years
Internally developed and used computer software
Business Acquisition [Line Items]
Finite lived intangible assets acquired		3,500
Useful life		2 years
Other non-contractual relationships
Business Acquisition [Line Items]
Finite lived intangible assets acquired		2,300
Useful life		3 years
Non-compete agreements
Business Acquisition [Line Items]
Finite lived intangible assets acquired		1,900
Useful life		2 years 6 months
Trade name
Business Acquisition [Line Items]
Finite lived intangible assets acquired		$ 1,100
Useful life		0 years 6 months

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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