Quarterly report pursuant to Section 13 or 15(d)

Employee Benefit Plans - Additional Information (Detail)

v3.19.2
Employee Benefit Plans - Additional Information (Detail) - USD ($)
3 Months Ended
Jun. 30, 2019
Mar. 31, 2019
Jun. 30, 2018
Defined Benefit Plan Disclosure [Line Items]      
Self-Insured medical plan liability $ 98,000 $ 150,000  
Pension Plans, Defined Benefit [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Contributions to its defined benefit pension plan 0    
Contributions expected for the balance of fiscal 2019     $ 0
Other Postretirement Benefit Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Post retirement benefit plan 1,000    
Defined benefit plan, benefit expected to pay for the balance of fiscal 2020 $ 77,000