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New and Recently Adopted Accounting Standards - Additional Information (Details) - ASU 2016-09 | 3 Months Ended | 6 Months Ended
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Jun. 30, 2017 USD ($) | Jun. 30, 2017 USD ($)
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |
Excess tax benefits from share-based compensation | $ 6,000,000 | $ 6,300,000
Unrecognized excess tax benefits | $ 0 | $ 0

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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319 + Details
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