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Product Warranty | 9 Months Ended
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Jan. 31, 2017
Product Warranties Disclosures [Abstract] |
Product Warranty | Product Warranty The Company estimates outstanding warranty costs based on the historical relationship between warranty claims and revenues. The warranty accrual is reviewed monthly to verify that it properly reflects the remaining obligation based on the anticipated expenditures over the balance of the obligation period. Adjustments are made when actual warranty claim experience differs from estimates. Warranty claims are generally made within two months of the original shipment date. The following is a reconciliation of the Company’s warranty liability, which is included in other accrued expenses on the balance sheet:
|  | Nine Months Ended
|  | January 31,
(in thousands) |  | 2018 |  | 2017
Beginning balance at May 1 |  | $ | 3,262 |  |  | $ | 2,926 |
Acquisition |  | 119 |  |  | — |
Accrual |  | 14,943 |  |  | 13,460 |
Settlements |  | (14,760 | ) |  | (13,376 | )
Ending balance at January 31 |  | $ | 3,564 |  |  | $ | 3,010 |

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- Definition The entire disclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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