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Organization and Summary of Significant Accounting Policies (Policies) | 9 Months Ended
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Sep. 30, 2018
Accounting Policies [Abstract] |
Cash and cash equivalents and Short-term investments | Cash and cash equivalents We consider all highly liquid investments with original maturities of three months or less when purchased to be cash equivalents. Short-term investments Short-term investments include U.S. Treasuries and other investment-grade commercial paper with maturities of six months or less. We intend to hold these investments until maturity and have stated them at amortized cost. Due to their near-term maturities, amortized cost approximates fair value. All of our short-term investments are traded on active markets with quoted prices and represent level 1 fair value measurements. See Note 4 for further discussion of our fair value measurements.
New Accounting Standards | Revenue Recognition Revenue for our fixed-price and unit-rate contracts is recognized under the percentage-of-completion method, computed by the significant inputs method, which measures the percentage of labor hours incurred to date as compared to estimated total labor hours for each contract. Revenue for our T&M contracts is recognized at contracted rates when the work is performed, the costs are incurred and collection is reasonably assured. See Note 3 for further discussion of our revenue recognition policy and related accounting for our contracts. On January 1, 2018, we adopted ASU No. 2014-09, Topic 606 “Revenue from Contracts with Customers”, which supersedes the revenue recognition requirements in FASB ASC Topic 605, “Revenue Recognition.” Topic 606 requires entities to recognize revenue in a way that depicts 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. Our adoption of Topic 606 included a detailed review of our significant contracts that were not substantially complete as of January 1, 2018. Based on our review, we concluded that revenue recognition for our fixed-price and unit-rate contracts using the percentage-of-completion method, computed by measuring the percentage of labor hours incurred to date as compared to estimated total labor hours for each contract, is still appropriate. Our review also determined that Topic 606 did not impact the timing of revenue recognition for our T&M contracts. Based on the aforementioned, we concluded that the impact of adoption of Topic 606 as of January 1, 2018, was immaterial to our Consolidated Financial Statements and no adjustment was required. See Note 3 for further discussion of our adoption of Topic 606. New Accounting Standards Leases - In February 2016, the FASB issued ASU 2016-02, “Leases,” which requires lessees to record most leases on their balance sheet but recognize expense in a manner similar to current guidance. ASU 2016-02 will be effective for us in the first quarter 2019. The new standard is required to be applied using a modified retrospective approach. Upon adoption, we will record a right of use asset and corresponding liability for our operating leases.We continue to evaluate the effect that ASU 2016-02 will have on our financial position, results of operations and related disclosures. We are currently designing and implementing process changes and evaluating the information requirements necessary to properly account for ASU 2016-02. Financial instruments - In June 2016, the FASB issued ASU 2016-13, “Financial Instruments - Credit Losses - Measurement of Credit Losses on Financial Instruments,” which changes the way companies evaluate credit losses for most financial assets and certain other instruments. For trade and other receivables, short-term investments, loans and other instruments, entities will be required to use a new forward-looking “expected loss” model to evaluate impairment, potentially resulting in earlier recognition of allowances for losses. The new standard also requires enhanced disclosures, including the requirement to disclose the information used to track credit quality by year of origination for most financing receivables. ASU 2016-13 will be effective for us in the first quarter 2020. Early adoption of the new standard is permitted; however, we have not elected to early adopt the standard. The new standard is required to be applied using a cumulative-effect transition method. We are currently evaluating the effect that ASU 2016-13 will have on our financial position, results of operations and related disclosures.

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- Definition The entire disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 305 -URI http://asc.fasb.org/topic&trid=2122426 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + Details
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- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. + References No definition available. + Details
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