Product Warranty (Tables)

6 Months Ended

Sep. 30, 2017

Guarantees and Product Warranties [Abstract]

Change in the Company's Warranty Accrual

The following table reflects the change in the Company’s warranty accrual during the six months ended September 30, 2017 and 2016:

	Six Months Ended
	September 30, 2017			September 30, 2016
	(In thousands)
Balance, beginning of period	$	11,058		$	11,434
Change in liability for warranties issued in period		218			4,167
Settlements made (in cash or in kind) during the period		(2,617	)		(4,235	)
Balance, end of period	$	8,659		$	11,366