Recently Adopted and Issued Accounting Standards	6 Months Ended
Jun. 30, 2019
Accounting Policies [Abstract]
Recently Adopted and Issued Accounting Standards	Recently Adopted and Issued Accounting Standards Recently Adopted Accounting Standards In August 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, which amends the hedge accounting recognition and presentation requirements in Accounting Standards Codification ("ASC") Topic 815. This amendment is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. The Company adopted this guidance on January 1, 2019, and the adoption did not have a material impact on the Company’s consolidated financial statements. In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). ASU No. 2016-02 establishes a right-of-use model that requires a lessee to record a right-of-use asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either "finance" or "operating," with such classification affecting the pattern of expense recognition in the income statement. This update is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. As a result of the adoption of ASU No. 2016-02, on January 1, 2019, the Company recognized (a) an operating lease liability of $118.3 million, which represented the present value of our remaining lease payments, and (b) a related right-of-use asset of $117.4 million. In addition, on January 1, 2019, the Company reclassified certain intangible assets related to real estate leases to right-of-use assets and reclassified its capital lease liability to a finance lease liability in accordance with the applicable transition guidance. The adoption of ASU No. 2016-02 did not have a material impact on the Company's statement of operations or cash flows. Due to the adoption of the standard using the retrospective cumulative-effect adjustment method, there are no changes to our previously reported results prior to January 1, 2019. Recently Issued Accounting Standards In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement. This ASU modifies the disclosure requirements on fair value measurements in Topic 820 based on the consideration of costs and benefits to promote the appropriate exercise and discretion by entities when considering fair value measurement disclosures and to clarify that materiality is an appropriate consideration of entities and their auditors when evaluating disclosure requirements. The amendments in this update are effective for reporting periods beginning after December 15, 2019, with early adoption permitted. The Company does not expect that the adoption of this guidance will have a material impact on its consolidated financial statements. In January 2017, the FASB issued ASU No. 2017-04, Intangibles--Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment, which eliminates the requirement to calculate the implied fair value of goodwill but rather requires an entity to record an impairment charge based on the excess of a reporting unit’s carrying value over its fair value. This amendment is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted. The Company does not expect that the adoption of this guidance will have a material impact on its consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This ASU changes the impairment model for most financial assets, requiring the use of an expected loss model which requires entities to estimate the lifetime expected credit loss on financial assets measured at amortized cost. Such credit losses will be recorded as an allowance to offset the amortized cost of the financial asset, resulting in a net presentation of the amount expected to be collected on the financial asset. In addition, credit losses relating to available-for-sale debt securities will now be recorded through an allowance for credit losses rather than as a direct write-down to the security. The amendments in this update are effective for reporting periods beginning after December 15, 2019, with early adoption permitted for reporting periods beginning after December 15, 2018. The Company does not expect that the adoption of this guidance will have a material impact on its consolidated financial statements.

Recently Adopted and Issued Accounting Standards

Recently Adopted Accounting Standards

In August 2017, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities, which amends the hedge accounting recognition and presentation requirements in Accounting Standards Codification ("ASC") Topic 815. This amendment is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. The Company adopted this guidance on January 1, 2019, and the adoption did not have a material impact on the Company’s consolidated financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842). ASU No. 2016-02 establishes a right-of-use model that requires a lessee to record a right-of-use asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either "finance" or "operating," with such classification affecting the pattern of expense recognition in the income statement. This update is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years.

As a result of the adoption of ASU No. 2016-02, on January 1, 2019, the Company recognized (a) an operating lease liability of $118.3 million, which represented the present value of our remaining lease payments, and (b) a related right-of-use asset of $117.4 million. In addition, on January 1, 2019, the Company reclassified certain intangible assets related to real estate leases to right-of-use assets and reclassified its capital lease liability to a finance lease liability in accordance with the applicable transition guidance. The adoption of ASU No. 2016-02 did not have a material impact on the Company's statement of operations or cash flows. Due to the adoption of the standard using the retrospective cumulative-effect adjustment method, there are no changes to our previously reported results prior to January 1, 2019.

Recently Issued Accounting Standards

In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement. This ASU modifies the disclosure requirements on fair value measurements in Topic 820 based on the consideration of costs and benefits to promote the appropriate exercise and discretion by entities when considering fair value measurement disclosures and to clarify that materiality is an appropriate consideration of entities and their auditors when evaluating disclosure requirements. The amendments in this update are effective for reporting periods beginning after December 15, 2019, with early adoption permitted. The Company does not expect that the adoption of this guidance will have a material impact on its consolidated financial statements.

In January 2017, the FASB issued ASU No. 2017-04, Intangibles--Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment, which eliminates the requirement to calculate the implied fair value of goodwill but rather requires an entity to record an impairment charge based on the excess of a reporting unit’s carrying value over its fair value. This amendment is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Early adoption is permitted. The Company does not expect that the adoption of this guidance will have a material impact on its consolidated financial statements.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments — Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. This ASU changes the impairment model for most financial assets, requiring the use of an expected loss model which requires entities to estimate the lifetime expected credit loss on financial assets measured at amortized cost. Such credit losses will be recorded as an allowance to offset the amortized cost of the financial asset, resulting in a net presentation of the amount expected to be collected on the financial asset. In addition, credit losses relating to available-for-sale debt securities will now be recorded through an allowance for credit losses rather than as a direct write-down to the security. The amendments in this update are effective for reporting periods beginning after December 15, 2019, with early adoption permitted for reporting periods beginning after December 15, 2018. The Company does not expect that the adoption of this guidance will have a material impact on its consolidated financial statements.