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Summary of Significant Accounting Policies - New Accounting Pronouncements Adopted (Details) - USD ($) $ in Millions | Dec. 31, 2015 | Dec. 31, 2014
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New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Debt issuance costs | [1] | $ 9.5 | $ 10.9
Accounting Standard Update 2015-17 [Member] |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Current deferred tax liabilities |  |  | 62.2
Accounting Standard Update 2015-03 [Member] |  |  |
New Accounting Pronouncement, Early Adoption [Line Items] |  |  |
Debt issuance costs |  |  | $ 10.9
[1] | In April 2015, the FASB issued new guidance on the presentation of debt issuance costs. This guidance requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. The Company early adopted this new guidance on a retrospective basis in the fourth quarter of fiscal year 2015.

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