Investments and Fair Value Measurements (Tables)
|12 Months Ended|
Dec. 31, 2017
|Fair Value Disclosures [Abstract]|
|Category of Financial Instruments Not Held at Fair Value||
At December 31, 2017 and December 31, 2016, financial instruments that are not held at fair value are categorized in the table below:
Tabular disclosure of items for which it is not practicable to estimate fair value. Such disclosure may be for an individual financial instrument or a class of financial instruments. The information to be included herein might include the carrying amount, effective interest rate, and maturity of the financial instrument or class of financial instruments (as applicable), as well as the reasons why estimating fair value is not practicable.
Reference 1: http://www.xbrl.org/2003/role/presentationRef