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Accounting Policies - Recently Adopted Accounting Standards (Details) - USD ($) $ in Millions | Apr. 02, 2017 | Jan. 01, 2017 | Dec. 31, 2016
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New Accounting Pronouncements |  |  |
Deferred tax asset | $ 2.3 |  | $ 3.0
Noncurrent deferred tax liability | $ 53.4 |  | $ 48.6
Accounting Standars Update 2016-09 |  |  |
New Accounting Pronouncements |  |  |
Cumulative effect adjustment |  | $ 0.5 |

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