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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 25, 2020
OPERATING ACTIVITIES |  |
Net income (loss) (including amounts attributable to non-controlling interests) | $ 575 | $ (1,079)
Adjustments to reconcile net income (loss) to net cash provided by operating activities |  |
Depreciation and amortization expense | 13,726 | 11,768
Amortization of debt issuance costs | 86 | 0
Capitalized Computer Software, Amortization | 313 | 260
Non-cash operating lease cost | 12,330 | 10,742
Equity-based compensation | 1,681 | 1,300
Deferred income taxes | (1,523) | 3,775
Non-cash interest expense | 337 | 69
Gain on sale of marketable securities | 0 | (79)
Impairment and loss on disposal of assets | 369 | 2,088
Unrealized loss on available-for-sale securities | 46 | 356
Other non-cash (income) expense | (1) | 183
Changes in operating assets and liabilities: |  |
Accounts receivable | 626 | 3,150
Inventories | 154 | 306
Prepaid expenses and other current assets | (731) | (439)
Other assets | (216) | (1,039)
Accounts payable | 1,474 | (4,449)
Accrued expenses | (9,420) | (6,330)
Accrued wages and related liabilities | 2,865 | (5,113)
Other current liabilities | (158) | 273
Long-term operating lease liabilities | (10,754) | (8,755)
Other long-term liabilities | (1,828) | 497
NET CASH PROVIDED BY OPERATING ACTIVITIES | 9,951 | 7,484
INVESTING ACTIVITIES |  |
Purchases of property and equipment | (23,155) | (19,159)
Purchases of marketable securities | (4,073) | (192)
Sales of marketable securities | 0 | 20,000
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES | (27,228) | 649
FINANCING ACTIVITIES |  |
Proceeds from issuance of convertible notes, net of discount | 243,750 | 0
Proceeds from revolving credit facility | 0 | 50,000
Deferred financing costs | (70) | 0
Payments on principal of finance leases | (602) | (615)
Distributions paid to non-controlling interest holders | (467) | (305)
Payments under tax receivable agreement | 0 | (6,569)
Debt issuance costs | (649) | 0
Proceeds from stock option exercises | 6,451 | 1,032
Payment, Tax Withholding, Share-based Payment Arrangement | (3,010) | (969)
NET CASH PROVIDED BY FINANCING ACTIVITIES | 245,403 | 42,574
NET INCREASE IN CASH AND CASH EQUIVALENTS | 228,126 | 50,707
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 146,873 | 37,099
CASH AND CASH EQUIVALENTS AT END OF PERIOD | $ 374,999 | $ 87,806

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