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Acquisition of Platinum Intangible Assets (Details) - USD ($) $ in Thousands		10 Months Ended
	Mar. 02, 2015	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Net identifiable intangible assets at December 31, 2015 related to the acquisition of Platinum		$ 82,900	$ 14,975
Insurance licenses
Business Acquisition [Line Items]
Net identifiable intangible assets at December 31, 2015 related to the acquisition of Platinum		10,267	1,867
Value of business acquired
Business Acquisition [Line Items]
Net identifiable intangible assets at December 31, 2015 related to the acquisition of Platinum		6,733
Internally developed and used computer software
Business Acquisition [Line Items]
Net identifiable intangible assets at December 31, 2015 related to the acquisition of Platinum		0	0
Other non-contractual relationships
Business Acquisition [Line Items]
Net identifiable intangible assets at December 31, 2015 related to the acquisition of Platinum		62,164	12,505
Non-compete agreements
Business Acquisition [Line Items]
Net identifiable intangible assets at December 31, 2015 related to the acquisition of Platinum		1,267	$ 152
Platinum
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 December 31, 2015)		(17,905)
Net identifiable intangible assets at December 31, 2015 related to the acquisition of Platinum		$ 65,695
Platinum \| Insurance licenses
Business Acquisition [Line Items]
Indefinite lived intangible assets acquired	8,400
Platinum \| Key non-contractual relationships
Business Acquisition [Line Items]
Finite lived intangible assets acquired	$ 30,400
Useful life	10 years
Platinum \| Value of business acquired
Business Acquisition [Line Items]
Finite lived intangible assets acquired	$ 20,200
Useful life	2 years
Platinum \| Renewal rights
Business Acquisition [Line Items]
Finite lived intangible assets acquired	$ 15,800
Useful life	15 years
Platinum \| Internally developed and used computer software
Business Acquisition [Line Items]
Finite lived intangible assets acquired	$ 3,500
Useful life	2 years
Platinum \| Other non-contractual relationships
Business Acquisition [Line Items]
Finite lived intangible assets acquired	$ 2,300
Useful life	3 years
Platinum \| Non-compete agreements
Business Acquisition [Line Items]
Finite lived intangible assets acquired	$ 1,900
Useful life	2 years 6 months
Platinum \| Trade name
Business Acquisition [Line Items]
Finite lived intangible assets acquired	$ 1,100
Useful life	6 months