New Accounting Standards	6 Months Ended
Jun. 30, 2017
Accounting Changes And Error Corrections [Abstract]
New Accounting Standards	3. New Accounting Standards Adopted Accounting Standards In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. This standard makes several modifications to Topic 718, including the accounting for forfeitures, employer tax withholding on share-based compensation and income tax consequences, and clarifies the statement of cash flows presentation for certain components of share-based awards, all of which are intended to simplify various aspects of the accounting for share-based compensation. We adopted this standard as of January 1, 2017, and since then recorded the excess benefits realized from stock compensation transactions in the Condensed Consolidated Statement of Comprehensive Income. Additionally, we elected to recognize forfeiture expense as forfeitures occur, rather than estimating forfeitures based on historical data. In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which removes the prohibition against immediate recognition of current and deferred income tax effects on intra-entity transfers of assets other than inventory. We elected to early adopt this standard as of January 1, 2017, and recorded a $3.2 million cumulative effect adjustment to the beginning balance of retained earnings on January 1, 2017 which resulted in a net impact of increasing deferred tax assets by $2.6 million and decreasing a deferred tax charge in other assets by $5.8 million related to a prior period intra-entity transfer of intellectual property. Accounting Standards Not Yet Adopted In January 2017, the FASB issued ASU 2017-04: Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This standard requires entities to measure goodwill impairment using the difference between the carrying amount and the fair value of the reporting unit, instead of performing a hypothetical purchase price allocation. This guidance is effective beginning January 1, 2020, although early adoption is permitted. The adoption of this guidance would only impact the measurement of a future goodwill impairment to the extent applicable. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which supersedes existing lease guidance. Under this ASU, we will be required to record right-of-use assets and corresponding lease liabilities on the balance sheet. This guidance is effective beginning January 1, 2019. The new standard is required to be applied with a modified retrospective approach to each prior reporting period presented. We have not yet determined the impact that the adoption of this guidance will have on our consolidated financial statements. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). Under this ASU and subsequently issued amendments, revenues are recognized at the time when goods or services are transferred to a customer in an amount that reflects the consideration it expects to receive in exchange for those goods or services. Companies may use either a full retrospective or a modified retrospective approach to adopt this ASU. We believe that the adoption of this standard will impact engagements that contain variable fee arrangements, including those in which we earn a completion fee when and if certain predefined outcomes occur, and certain engagements with fixed-fees that have multiple performance obligations. We expect to recognize revenue under certain success fee arrangements earlier upon adoption of this standard than we do under current guidance. We will adopt this standard using the modified retrospective method effective January 1, 2018.

3. New Accounting Standards

Adopted Accounting Standards

In March 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting. This standard makes several modifications to Topic 718, including the accounting for forfeitures, employer tax withholding on share-based compensation and income tax consequences, and clarifies the statement of cash flows presentation for certain components of share-based awards, all of which are intended to simplify various aspects of the accounting for share-based compensation. We adopted this standard as of January 1, 2017, and since then recorded the excess benefits realized from stock compensation transactions in the Condensed Consolidated Statement of Comprehensive Income. Additionally, we elected to recognize forfeiture expense as forfeitures occur, rather than estimating forfeitures based on historical data.

In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory, which removes the prohibition against immediate recognition of current and deferred income tax effects on intra-entity transfers of assets other than inventory. We elected to early adopt this standard as of January 1, 2017, and recorded a $3.2 million cumulative effect adjustment to the beginning balance of retained earnings on January 1, 2017 which resulted in a net impact of increasing deferred tax assets by $2.6 million and decreasing a deferred tax charge in other assets by $5.8 million related to a prior period intra-entity transfer of intellectual property.

Accounting Standards Not Yet Adopted

In January 2017, the FASB issued ASU 2017-04: Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment. This standard requires entities to measure goodwill impairment using the difference between the carrying amount and the fair value of the reporting unit, instead of performing a hypothetical purchase price allocation. This guidance is effective beginning January 1, 2020, although early adoption is permitted. The adoption of this guidance would only impact the measurement of a future goodwill impairment to the extent applicable.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), which supersedes existing lease guidance. Under this ASU, we will be required to record right-of-use assets and corresponding lease liabilities on the balance sheet. This guidance is effective beginning January 1, 2019. The new standard is required to be applied with a modified retrospective approach to each prior reporting period presented. We have not yet determined the impact that the adoption of this guidance will have on our consolidated financial statements.

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606). Under this ASU and subsequently issued amendments, revenues are recognized at the time when goods or services are transferred to a customer in an amount that reflects the consideration it expects to receive in exchange for those goods or services. Companies may use either a full retrospective or a modified retrospective approach to adopt this ASU. We believe that the adoption of this standard will impact engagements that contain variable fee arrangements, including those in which we earn a completion fee when and if certain predefined outcomes occur, and certain engagements with fixed-fees that have multiple performance obligations. We expect to recognize revenue under certain success fee arrangements earlier upon adoption of this standard than we do under current guidance. We will adopt this standard using the modified retrospective method effective January 1, 2018.