XML 26 R12.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Investments | 12 Months Ended
--- | ---
Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract] |
Investments | NOTE 4 – INVESTMENTS Cash and cash equivalents includes investments in money market funds that are valued based on the net asset value of the funds. The investments in these funds were $69.8 million and $55.6 million as of December 31, 2018 and 2017, respectively. All other investments are classified as held-to-maturity and consist of highly liquid instruments including primarily corporate bonds and commercial paper. As of December 31, 2018 and 2017, the amortized cost of these investments equaled the net carrying value, which was $10.1 million and $30.1 million, respectively. All held-to-maturity securities as of December 31, 2018 mature in one year or less. See Note 8, Fair Value Measurements, for additional information.

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 + Details
Name: | us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration