Summarized Financial Information for Joint Venture Unconsolidated (Detail) - Joint Venture [Member] - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019
Related Party Transaction [Line Items]
Revenue	$ 55,010	$ 54,528
Gross Margin	19,866	20,141
Earnings Before Income Taxes	19,017	$ 18,658
Current Assets	80,834		$ 71,688
Non-Current Assets	84,859		81,007
Current Liabilities	$ 16,569		$ 19,309

The amount of current assets reported by an equity method investment of the entity.

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