Nature of Business and Basis of Presentation (Policies)	9 Months Ended
Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Newly-Adopted and Recent Accounting Pronouncements	Newly-Adopted Accounting Pronouncements In April 2015, the Financial Accounting Standards Board (“FASB”) issued updated guidance to simplify the presentation of debt issuance costs on the balance sheets. This guidance moved debt issuance costs from the assets section of the balance sheet to the liabilities section as a direct deduction from the carrying amount of the debt issued. The Company retrospectively adopted the guidance on January 1, 2016. The prior period consolidated balance sheet presented, as of December 31, 2015, was revised to reclassify $6.2 million of debt issuance costs included in other assets to convertible senior notes. This had the impact of reducing the Company's total assets and total liabilities by $6.2 million, as of December 31, 2015. This reclassification did not have a material impact on the Company's consolidated financial statements. In September 2015, the FASB issued updated guidance that eliminates the requirement to restate prior period financial statements for measurement period adjustments. In an effort to reduce complexity in financial reporting, the new guidance requires that the cumulative impact of a measurement period adjustment, including the impact on prior periods, be recognized in the reporting period in which the adjustment is identified. The standard was effective for and adopted by the Company on January 1, 2016. This guidance did not have an impact on the Company's consolidated financial statements as the measurement periods for the Company's 2015 acquisitions were closed as of December 31, 2015. Recent Accounting Pronouncements In May 2014, the FASB issued updated guidance and disclosure requirements for recognizing revenue. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This standard will be effective for the Company on January 1, 2018, and may be applied retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. The Company is evaluating the potential impact of adopting this new accounting guidance on its consolidated financial statements. In February 2016, the FASB issued guidance that requires companies to present assets and liabilities arising from leases on the consolidated balance sheets. The updated standard aims to increase transparency and comparability among organizations by requiring lessees to recognize lease assets and lease liabilities on the balance sheet and requiring disclosure of key information about leasing arrangements. This standard will be effective for the Company on January 1, 2019, and is to be applied using a modified retrospective approach. Early adoption is permitted. The Company is evaluating the potential impact of adopting this new accounting guidance on its consolidated financial statements. In March 2016, the FASB issued guidance that is intended to simplify aspects of how share-based payments are accounted for and presented in financial statements. This guidance requires that entities record all tax effects of share-based payments at settlement or expiration through the income statement. The standard also amends how windfall tax benefits are recognized, the minimum statutory tax withholding requirements and how entities elect to recognize share-based payment forfeitures. This guidance will be effective for the Company on January 1, 2017, and portions will be required to be applied on a retrospective or modified retrospective basis. The Company is evaluating the potential impact of adopting this new accounting guidance on its consolidated financial statements. In June 2016, the FASB issued guidance that introduces a new methodology for accounting for credit losses on financial instruments, including available-for-sale debt securities. The guidance establishes a new "expected loss model" that requires entities to estimate current expected credit losses on financial instruments by using all practical and relevant information. Any expected credit losses are to be reflected as allowances rather than reductions in the amortized cost of available-for-sale debt securities. This guidance will be effective for the Company on January 1, 2020. Early adoption is permitted. The Company is evaluating the potential impact of adopting this new accounting guidance on its consolidated financial statements. In October 2016, the FASB issued guidance which requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. This guidance will be effective for the Company on January 1, 2018 and is to be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings at the beginning period of adoption. Early adoption is permitted in the first interim period of an annual reporting period for which financial statements have not been issued. The Company is evaluating the potential impact of adopting this new accounting guidance on its consolidated financial statements.

Newly-Adopted Accounting Pronouncements

In April 2015, the Financial Accounting Standards Board (“FASB”) issued updated guidance to simplify the presentation of debt issuance costs on the balance sheets. This guidance moved debt issuance costs from the assets section of the balance sheet to the liabilities section as a direct deduction from the carrying amount of the debt issued. The Company retrospectively adopted the guidance on January 1, 2016. The prior period consolidated balance sheet presented, as of December 31, 2015, was revised to reclassify $6.2 million of debt issuance costs included in other assets to convertible senior notes. This had the impact of reducing the Company's total assets and total liabilities by $6.2 million, as of December 31, 2015. This reclassification did not have a material impact on the Company's consolidated financial statements.

In September 2015, the FASB issued updated guidance that eliminates the requirement to restate prior period financial statements for measurement period adjustments. In an effort to reduce complexity in financial reporting, the new guidance requires that the cumulative impact of a measurement period adjustment, including the impact on prior periods, be recognized in the reporting period in which the adjustment is identified. The standard was effective for and adopted by the Company on January 1, 2016. This guidance did not have an impact on the Company's consolidated financial statements as the measurement periods for the Company's 2015 acquisitions were closed as of December 31, 2015.

Recent Accounting Pronouncements

In May 2014, the FASB issued updated guidance and disclosure requirements for recognizing revenue. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This standard will be effective for the Company on January 1, 2018, and may be applied retrospectively to each period presented or as a cumulative-effect adjustment as of the date of adoption. The Company is evaluating the potential impact of adopting this new accounting guidance on its consolidated financial statements.

In February 2016, the FASB issued guidance that requires companies to present assets and liabilities arising from leases on the consolidated balance sheets. The updated standard aims to increase transparency and comparability among organizations by requiring lessees to recognize lease assets and lease liabilities on the balance sheet and requiring disclosure of key information about leasing arrangements. This standard will be effective for the Company on January 1, 2019, and is to be applied using a modified retrospective approach. Early adoption is permitted. The Company is evaluating the potential impact of adopting this new accounting guidance on its consolidated financial statements.

In March 2016, the FASB issued guidance that is intended to simplify aspects of how share-based payments are accounted for and presented in financial statements. This guidance requires that entities record all tax effects of share-based payments at settlement or expiration through the income statement. The standard also amends how windfall tax benefits are recognized, the minimum statutory tax withholding requirements and how entities elect to recognize share-based payment forfeitures. This guidance will be effective for the Company on January 1, 2017, and portions will be required to be applied on a retrospective or modified retrospective basis. The Company is evaluating the potential impact of adopting this new accounting guidance on its consolidated financial statements.

In June 2016, the FASB issued guidance that introduces a new methodology for accounting for credit losses on financial instruments, including available-for-sale debt securities. The guidance establishes a new "expected loss model" that requires entities to estimate current expected credit losses on financial instruments by using all practical and relevant information. Any expected credit losses are to be reflected as allowances rather than reductions in the amortized cost of available-for-sale debt securities. This guidance will be effective for the Company on January 1, 2020. Early adoption is permitted. The Company is evaluating the potential impact of adopting this new accounting guidance on its consolidated financial statements.

In October 2016, the FASB issued guidance which requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. This guidance will be effective for the Company on January 1, 2018 and is to be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings at the beginning period of adoption. Early adoption is permitted in the first interim period of an annual reporting period for which financial statements have not been issued. The Company is evaluating the potential impact of adopting this new accounting guidance on its consolidated financial statements.