Employee Benefit Plans (Detail) |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2015
USD ($)
Y
|
Dec. 31, 2014
USD ($)
|
Dec. 31, 2013
USD ($)
|
|
Pension and Other Postretirement Benefits Disclosure [Abstract] | |||
Minimum Eligible Age For Employees To Contribute To Benefit Plan | Y | 21 | ||
Employer Match Amount | $ 0.375 | $ 0.375 | $ 0.375 |
Employee Contribution Amount | $ 1.00 | $ 1.00 | $ 1.00 |
Maximum Percentage of Employee Salary Eligible for Employer Match | 6.00% | 6.00% | 6.00% |
401 (k) Expense Recognized by Company | $ 6,100,000 | $ 6,200,000 | $ 7,800,000 |