• Filing Date: 2019-03-08
  • Form Type: 10-K
  • Description: Annual report
v3.10.0.1
Stock-Based Compensation - Assumptions Used to Estimate the Fair Value of Stock Options Granted (Detail)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Expected dividend yield 4.00% 3.53%
Expected volatility 42.22% 42.86%
Risk-free interest rate 2.57% 1.92%
Expected life (in years) 5 years 5 years