Summary of Fair Value Estimates of Identifiable Intangible Assets and Weighted-Average Useful Lives (Detail) $ in Thousands |
12 Months Ended |
---|---|
Mar. 31, 2017
USD ($)
| |
Acquired Finite Lived Intangible Assets [Line Items] | |
Estimated Fair Value | $ 10,000 |
Customer Relationships [Member] | |
Acquired Finite Lived Intangible Assets [Line Items] | |
Weighted Average Life | 15 years |
Estimated Fair Value | $ 9,000 |
Permits [Member] | |
Acquired Finite Lived Intangible Assets [Line Items] | |
Weighted Average Life | 40 years |
Estimated Fair Value | $ 1,000 |