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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2016
Cash flows from operating activities: |  |  |
Net income | $ 108,263 | $ 218,120 | $ 224,489
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 128,408 | 135,330 | 142,722
Provision (benefit) for deferred income taxes | 8,329 | (4,801) | 13,662
Share-based compensation expense | 14,517 | 18,291 | 15,623
Impairment | 11,410 | 4,341 | 8,928
Loss on disposition of property and equipment, net | 4,037 | 3,667 | 1,400
Changes in assets and liabilities: |  |  |
Receivables | (21,744) | 20,934 | (13,820)
Inventory | (8,644) | (9,963) | 26,739
Prepaid expenses and other assets | 12,967 | (10,359) | 3,811
Payables, accrued expenses and other liabilities | 45,516 | 39,692 | (3,940)
Net cash provided by operating activities | 303,059 | 415,252 | 419,614
Cash flows from investing activities: |  |  |
Cash paid for property and equipment | (83,813) | (143,714) | (134,950)
Cash paid for marketable securities | (281,385) | (318,742) | (265,872)
Sales and maturities of marketable securities | 243,818 | 243,159 | 374,057
Acquisition of business |  | (15,325) |
Net cash used in investing activities | (121,380) | (234,622) | (26,765)
Cash flows from financing activities: |  |  |
Borrowings under long-term debt |  |  | 291,612
Repayments of long-term debt |  | (150,000) | (141,612)
Proceeds from the exercise of share-based awards |  | 4,096 | 46,400
Share repurchases related to share repurchase program | (157,044) | (45,787) | (465,304)
Share repurchases related to taxes for share-based awards | (2,182) | (2,052) | (10,120)
Net cash used in financing activities | (159,226) | (193,743) | (279,024)
Effect of exchange rate changes on cash and cash equivalents | 11,627 | (4,023) | (3,107)
Increase (decrease) in cash and cash equivalents | 34,080 | (17,136) | 110,718
Cash and cash equivalents at beginning of period | 248,140 | 265,276 | 154,558
Cash and cash equivalents at end of period | 282,220 | 248,140 | 265,276
Cash paid during the year for: |  |  |
Income taxes | 83,986 | 111,958 | 99,359
Non-cash investing activities—Accrued capital expenditures | $ 10,144 | $ 17,020 | $ 11,607

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Period Type: | duration

X
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
Name: | us-gaap_ShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration