Condensed Consolidated Statements of Stockholders' Equity (parenthetical) $ in Millions	Jan. 01, 2018 USD ($)
Accounting Standards Update 2014-09 [Member]
Cumulative effect of change on equity or net assets	$ 4.1
Accounting Standards Update 2016-01 [Member]
Cumulative effect of change on equity or net assets	$ 0.5

Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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