Derivative Financial Instruments (Tables)
|12 Months Ended|
Dec. 31, 2018
|Derivative Instruments And Hedging Activities Disclosure [Abstract]|
|Summary of Changes in AOCL||
The changes in AOCL for the years ended December 31, 2018, 2017, and 2016 are summarized as follows:
Tabular disclosure of the components of accumulated other comprehensive income (loss).
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef