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Merger and Other Acquisitions Schedule of intangible Assets Acquired (Details) - USD ($) $ in Thousands		12 Months Ended
	Sep. 01, 2016	Dec. 31, 2016	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets		$ 81,633	$ 1,753
Definite-lived Intangible Assets Acquired		103,250
Paw licenses
Acquired Finite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets Acquired		32,300
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets Acquired		14,700
Useful life	5 years
Executive non-compete agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Definite-lived Intangible Assets Acquired		$ 8,700
Useful life	2 years

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+ References

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Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, from an acquisition.

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