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Acquisition of RSI Home Products, Inc. (the "RSI Acquisition") (Preliminary Allocation of Purchase Price to Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands | Jan. 31, 2019 | Apr. 30, 2018 | Dec. 29, 2017
--- | --- | --- | ---
Business Acquisition [Line Items] |  |  |
Goodwill | $ 767,612 | $ 767,451 |
RSI Home Products, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Goodwill |  |  | $ 767,612
Property, plant and equipment |  |  | 86,275
Inventories |  |  | 66,293
Customer receivables |  |  | 54,649
Customer receivables |  |  | 54,649
Income taxes receivable |  |  | 18,926
Prepaid expenses and other |  |  | 4,571
Leasehold interests |  |  | 151
Total identifiable assets and goodwill acquired |  |  | 1,282,477
Debt |  |  | 602,313
Deferred income taxes |  |  | 67,542
Accrued expenses |  |  | 30,240
Accounts payable |  |  | 25,113
Notes payable |  |  | 2,988
Income taxes payable |  |  | 49
Total liabilities assumed |  |  | 728,245
Total accounting consideration |  |  | 554,232
RSI Home Products, Inc. | Customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Intangibles |  |  | 274,000
RSI Home Products, Inc. | Trademarks |  |  |
Business Acquisition [Line Items] |  |  |
Intangibles |  |  | $ 10,000

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