Investments and Fair Value Measurements (Tables)
|3 Months Ended|
Mar. 31, 2019
|Fair Value Disclosures [Abstract]|
|Category of Financial Instruments Not Held at Fair Value||
At March 31, 2019 and December 31, 2018, financial instruments that are not held at fair value are categorized in the table below:
Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef