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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2020 | Jan. 31, 2019 | Jan. 31, 2018
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | $ 244,514 | $ 165,416 | $ 155,488
ASC 606 Transition Adjustment |  | 66,617 |
Charges to Cost and Expenses | 478,996 | 432,755 | 337,298
Deductions | 489,382 | 420,274 | 327,370
Balance at End of Period | 234,128 | 244,514 | 165,416
Allowance for doubtful accounts |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | 924 | 2,093 | 1,192
Charges to Cost and Expenses | (72) | (140) | 854
Deductions | 142 | 1,029 | (47)
Balance at End of Period | 710 | 924 | 2,093
Reserve for returns |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | 62,278 | 61,179 | 59,802
Charges to Cost and Expenses | 56,440 | 57,777 | 32,710
Deductions | 72,229 | 56,678 | 31,333
Balance at End of Period | 46,489 | 62,278 | 61,179
Reserve for sales allowances |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance at Beginning of Period | 181,312 | 102,144 | 94,494
ASC 606 Transition Adjustment |  | 66,617 |
Charges to Cost and Expenses | 422,628 | 375,118 | 303,734
Deductions | 417,011 | 362,567 | 296,084
Balance at End of Period | $ 186,929 | $ 181,312 | $ 102,144

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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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