Annual report pursuant to Section 13 and 15(d)

Goodwill and Other Impairments - Additional Information (Detail)

v3.20.1
Goodwill and Other Impairments - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2018
Finite Lived Intangible Assets [Line Items]        
Intangible amortization expense   $ 11 $ 237 $ 236
Impairment losses, goodwill $ 1,222     5,716
Impairment of goodwill and intangible assets 6,449   6,449 14,816
Permits [Member]        
Finite Lived Intangible Assets [Line Items]        
Impairment losses, intangible assets 1,700     8,600
Tradename [Member]        
Finite Lived Intangible Assets [Line Items]        
Impairment losses, intangible assets 2,000     500
Customer Relationships [Member]        
Finite Lived Intangible Assets [Line Items]        
Intangible amortization expense   $ 0 $ 180 $ 180
Impairment losses, intangible assets 1,208      
Other Long-Lived Assets [Member]        
Finite Lived Intangible Assets [Line Items]        
Impairment losses, intangible assets $ 319