Nature of Business and Summary of Significant Accounting Policies - Stock-Compensation - Additional Details (Details) $ in Millions	Jan. 01, 2017 USD ($)
Accounting Standards Update 2016-09 \| Retained Earnings \| New Accounting Pronouncement, Early Adoption, Effect
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ 1.1

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant