New Accounting Pronouncements	12 Months Ended
Dec. 31, 2016
Accounting Changes and Error Corrections [Abstract]
New Accounting Pronouncements	New Accounting Pronouncements Recently Adopted Accounting Pronouncements Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. In April 2015, the Financial Accounting Standards Board ("FASB") issued authoritative guidance designed to assist customers in their determination of whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance did not change GAAP for a customer’s accounting for service contracts. This guidance was effective for the Company in the first quarter of 2016. The adoption of this guidance did not have a material impact on the Company's financial statements. Business Combinations. In September 2015, the FASB issued authoritative guidance that eliminates the requirement to restate prior period financial statements for measurement period adjustments following a business combination. The new guidance requires that an acquirer record in the same period’s financial statements the effects of the cumulative impact of adjustments including the impact on prior periods. The prior period impact of the adjustments should be presented separately on the face of the income statement or disclosed in the notes. The new guidance was effective for the Company in the first quarter of 2016. The adoption of this guidance did not have a material impact on the Company's financial statements. Balance Sheet Classification of Deferred Taxes. During November 2015, the FASB issued authoritative guidance which changes how deferred taxes are classified on a company's balance sheet. The new guidance provides presentation requirements to classify deferred tax assets and liabilities as noncurrent in a classified statement of financial position. The standard is effective for fiscal year beginning after December 15, 2016, including interim periods within that reporting period. The Company early adopted this guidance effective December 31, 2016, retrospectively. The adoption resulted in a $145.7 million decrease in current deferred income taxes, a $113.8 million increase in noncurrent deferred income taxes, and a $31.9 million decrease in other liabilities, in the Company's Consolidated Statement of Financial Position at December 31, 2015. The adoption of this guidance had no impact on the Company's results of operations. Recently Issued Accounting Pronouncements Not Yet Adopted Revenue from Contracts with Customers. In May 2014, the FASB issued authoritative guidance that provides companies with a single model for use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific revenue guidance. The new guidance requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The amended guidance also requires additional quantitative and qualitative disclosures. In March 2016, amended guidance was issued to clarify implementation guidance on principal versus agent consideration. In April 2016 an amendment provided clarifications on determining whether a promised license provides a customer with a right to use or a right to access an entity’s intellectual property. In May 2016 an amendment provided narrow scope improvements and practical expedients to reduce the potential diversity, cost and complexity of applying new revenue standard. These amendments, as well as the original guidance, are all effective for annual and interim periods beginning after December 15, 2017. The new standard will be effective for the Company beginning January 1, 2018 and the Company intends to implement the standard with the modified retrospective approach, which recognizes the cumulative effect of application recognized on that date. The Company is in the process of evaluating the impact of adoption of this guidance on its financial statements. Based on our progress to date, the Company does not anticipate any significant changes to systems, processes, or controls, and no one area will be significantly impacted upon adoption. Lease Accounting. In February 2016, the FASB issued authoritative guidance which changes financial reporting as it relates to leasing transactions. Under the new guidance, lessees will be required to recognize a lease liability, measured on a discounted basis; and a right-of-use asset, for the lease term. The new guidance is effective for annual and interim periods beginning after December 15, 2018. Early application is permitted for all entities upon issuance. Lessees and lessors must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The Company is in the process of evaluating the impact of adoption of this guidance on its financial statements. Stock Compensation. In March 2016, the FASB issued authoritative guidance which changes financial reporting as it relates to Employee Share-Based Payment Accounting. Under the new guidance, several aspects of the accounting for share-based payment award transactions will be simplified, including: i) income tax consequences; ii) classification of awards as either equity or liabilities; and iii) classification on the statement of cash flows. The new guidance is effective for annual and interim periods beginning after December 15, 2016. Early application is permitted for any organization in any interim or annual period. The Company believes the most significant impacts of the new guidance will be: i) the added volatility to the Company’s effective tax rate from the change in accounting for income taxes and ii) on its classification of excess tax benefits on the Consolidated Statements of Cash Flows. The impact of this guidance on future periods is dependent on the Company's stock price at the time the awards vest and the number of awards that vest. Classification of Certain Cash Receipts and Cash Payments in Statement of Cash Flows. In August 2016, the FASB issued authoritative guidance designed to address diversity in how certain cash receipts and cash payments are presented and classified in the statement of cash flows, including: i) contingent consideration payments made after a business combination; ii) proceeds from the settlement of insurance claims; and iii) proceeds from the settlement of corporate-owned life insurance policies. The new guidance is effective for the Company for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted in any interim or annual period. The Company believes the adoption of this guidance will not have a material impact on its financial statements. Simplifying the Test for Goodwill Impairment. In January 2017, the FASB issued authoritative guidance to simplify the goodwill impairment testing process. The new standard eliminates Step 2 of the goodwill impairment test. If a company determines in Step 1 of the goodwill impairment test that the carrying value of goodwill is less than the fair value, an impairment in that amount should be recorded to the income statement, rather than proceeding to Step 2. The new guidance is effective for the Company beginning after December 31, 2019, although early adoption is permitted.

New Accounting Pronouncements

Recently Adopted Accounting Pronouncements

Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. In April 2015, the Financial Accounting Standards Board ("FASB") issued authoritative guidance designed to assist customers in their determination of whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the customer should account for the software license element of the arrangement consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. The guidance did not change GAAP for a customer’s accounting for service contracts. This guidance was effective for the Company in the first quarter of 2016. The adoption of this guidance did not have a material impact on the Company's financial statements.

Business Combinations. In September 2015, the FASB issued authoritative guidance that eliminates the requirement to restate prior period financial statements for measurement period adjustments following a business combination. The new guidance requires that an acquirer record in the same period’s financial statements the effects of the cumulative impact of adjustments including the impact on prior periods. The prior period impact of the adjustments should be presented separately on the face of the income statement or disclosed in the notes. The new guidance was effective for the Company in the first quarter of 2016. The adoption of this guidance did not have a material impact on the Company's financial statements.

Balance Sheet Classification of Deferred Taxes. During November 2015, the FASB issued authoritative guidance which changes how deferred taxes are classified on a company's balance sheet. The new guidance provides presentation requirements to classify deferred tax assets and liabilities as noncurrent in a classified statement of financial position. The standard is effective for fiscal year beginning after December 15, 2016, including interim periods within that reporting period. The Company early adopted this guidance effective December 31, 2016, retrospectively. The adoption resulted in a $145.7 million decrease in current deferred income taxes, a $113.8 million increase in noncurrent deferred income taxes, and a $31.9 million decrease in other liabilities, in the Company's Consolidated Statement of Financial Position at December 31, 2015. The adoption of this guidance had no impact on the Company's results of operations.

Recently Issued Accounting Pronouncements Not Yet Adopted

Revenue from Contracts with Customers. In May 2014, the FASB issued authoritative guidance that provides companies with a single model for use in accounting for revenue arising from contracts with customers and supersedes current revenue recognition guidance, including industry-specific revenue guidance. The new guidance requires a company to recognize revenue to depict the transfer of goods or services to a customer at an amount that reflects the consideration it expects to receive in exchange for those goods or services. It also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. The guidance permits companies to either apply the requirements retrospectively to all prior periods presented, or apply the requirements in the year of adoption, through a cumulative adjustment. The amended guidance also requires additional quantitative and qualitative disclosures. In March 2016, amended guidance was issued to clarify implementation guidance on principal versus agent consideration. In April 2016 an amendment provided clarifications on determining whether a promised license provides a customer with a right to use or a right to access an entity’s intellectual property. In May 2016 an amendment provided narrow scope improvements and practical expedients to reduce the potential diversity, cost and complexity of applying new revenue standard. These amendments, as well as the original guidance, are all effective for annual and interim periods beginning after December 15, 2017. The new standard will be effective for the Company beginning January 1, 2018 and the Company intends to implement the standard with the modified retrospective approach, which recognizes the cumulative effect of application recognized on that date. The Company is in the process of evaluating the impact of adoption of this guidance on its financial statements. Based on our progress to date, the Company does not anticipate any significant changes to systems, processes, or controls, and no one area will be significantly impacted upon adoption.

Lease Accounting. In February 2016, the FASB issued authoritative guidance which changes financial reporting as it relates to leasing transactions. Under the new guidance, lessees will be required to recognize a lease liability, measured on a discounted basis; and a right-of-use asset, for the lease term. The new guidance is effective for annual and interim periods beginning after December 15, 2018. Early application is permitted for all entities upon issuance. Lessees and lessors must apply a modified retrospective transition approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The Company is in the process of evaluating the impact of adoption of this guidance on its financial statements.

Stock Compensation. In March 2016, the FASB issued authoritative guidance which changes financial reporting as it relates to Employee Share-Based Payment Accounting. Under the new guidance, several aspects of the accounting for share-based payment award transactions will be simplified, including: i) income tax consequences; ii) classification of awards as either equity or liabilities; and iii) classification on the statement of cash flows. The new guidance is effective for annual and interim periods beginning after December 15, 2016. Early application is permitted for any organization in any interim or annual period. The Company believes the most significant impacts of the new guidance will be: i) the added volatility to the Company’s effective tax rate from the change in accounting for income taxes and ii) on its classification of excess tax benefits on the Consolidated Statements of Cash Flows. The impact of this guidance on future periods is dependent on the Company's stock price at the time the awards vest and the number of awards that vest.

Classification of Certain Cash Receipts and Cash Payments in Statement of Cash Flows. In August 2016, the FASB issued authoritative guidance designed to address diversity in how certain cash receipts and cash payments are presented and classified in the statement of cash flows, including: i) contingent consideration payments made after a business combination; ii) proceeds from the settlement of insurance claims; and iii) proceeds from the settlement of corporate-owned life insurance policies. The new guidance is effective for the Company for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted in any interim or annual period. The Company believes the adoption of this guidance will not have a material impact on its financial statements.

Simplifying the Test for Goodwill Impairment. In January 2017, the FASB issued authoritative guidance to simplify the goodwill impairment testing process. The new standard eliminates Step 2 of the goodwill impairment test. If a company determines in Step 1 of the goodwill impairment test that the carrying value of goodwill is less than the fair value, an impairment in that amount should be recorded to the income statement, rather than proceeding to Step 2. The new guidance is effective for the Company beginning after December 31, 2019, although early adoption is permitted.