Fair Value Accounting	6 Months Ended
Fair Value Accounting	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value Accounting	FAIR VALUE ACCOUNTING Fair value of financial instruments Equity securities with readily determinable fair values - The fair values of equity securities with readily determinable fair values at June 30, 2018 and December 31, 2017 were $0.7 million and $4.3 million, respectively. These balances are recorded within other assets, with any changes in fair value recorded within other expense, net. The exit price fair value was based upon either Level 1 inputs when the securities are actively traded with quoted market prices or Level 2 when the securities are not frequently traded. Long-term borrowings - The fair values of the 2024 Dollar Senior Notes, 2024 Euro Senior Notes and 2025 Euro Senior Notes at June 30, 2018 were $496.9 million, $402.1 million and $534.3 million, respectively. The fair values at December 31, 2017 were $524.4 million, $427.7 million and $571.8 million, respectively. The estimated fair values of these notes are based on recent trades, as reported by a third-party pricing service. Due to the infrequency of trades of the Senior Notes, these inputs are considered to be Level 2 inputs. The fair values of the 2024 Dollar Term Loans and the 2023 Euro Term Loans at June 30, 2018 were $2,402.7 million and zero, respectively. The fair values at December 31, 2017 were $1,967.4 million and $475.5 million, respectively. The estimated fair values of the term loans are based on recent trades, as reported by a third-party pricing service, and due to the infrequency of the trades, these inputs are considered to be Level 2 inputs. Fair value of contingent consideration The fair value of contingent consideration associated with acquisitions completed in current and prior years are valued at each balance sheet date, until amounts become payable, with adjustments recorded within selling, general and administrative expenses on the condensed consolidated statement of operations. The fair value of contingent consideration was zero and $8.9 million at June 30, 2018 and December 31, 2017, respectively. During the three and six months ended June 30, 2017 the Company recorded gains of $2.2 million and $3.9 million associated with the changes to fair value, respectively. Adjustments made to fair value were immaterial for the three and six months ended June 30, 2018. Due to the significant unobservable inputs used in the valuations, these liabilities are categorized within Level 3 of the fair value hierarchy.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.