Debt - Narrative (Details)
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1 Months Ended |
3 Months Ended |
9 Months Ended |
12 Months Ended |
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Jan. 03, 2022
USD ($)
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Dec. 31, 2020
USD ($)
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Oct. 31, 2021
USD ($)
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Jul. 31, 2021
USD ($)
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Oct. 31, 2021
USD ($)
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Nov. 01, 2020
USD ($)
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Nov. 30, 2020 |
Jun. 30, 2020
USD ($)
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May 31, 2020
USD ($)
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Jul. 31, 2019
USD ($)
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| Extinguishment of Debt [Line Items] |
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| Deferred employer payroll taxes related to the CARES Act |
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$ 26,200,000
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$ 26,200,000
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| DZ Financing Program |
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| Extinguishment of Debt [Line Items] |
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| Transferors interests in transferred financial assets, maximum investment limit |
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$ 100,000,000
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$ 115,000,000
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| Covenant, minimum tangible net worth through fiscal quarter ending July 31, 2021 (at least) |
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$ 20,000,000
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| Covenant, minimum tangible net worth, each quarter thereafter |
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25,000,000
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| Eligibility threshold for receivables of large customers (as a percent) |
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8.00%
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5.00%
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| Covenant, maximum debt to tangible net worth ratio |
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3
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| Covenant, minimum liquid assets |
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15,000,000
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$ 15,000,000
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| Borrowing availability |
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6,000,000
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6,000,000
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| Long-term debt |
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60,000,000
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$ 60,000,000
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$ 60,000,000
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| Weighted average annual interest rate during period (as a percent) |
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1.90%
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2.60%
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| DZ Financing Program | Letter of Credit, Security Deposit |
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| Extinguishment of Debt [Line Items] |
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| Fair value of amount outstanding |
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1,200,000
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$ 1,200,000
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| DZ Financing Program | Letter of Credit |
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| Extinguishment of Debt [Line Items] |
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| Current borrowing capacity |
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$ 35,000,000
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| Fair value of amount outstanding |
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22,100,000
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22,100,000
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| DZ Financing Program | Letter of Credit | Short Term Financing Program |
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| Extinguishment of Debt [Line Items] |
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| Fair value of amount outstanding |
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$ 20,900,000
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$ 20,900,000
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| DZ Financing Program | Federal Funds Rate | Letter of Credit |
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| Extinguishment of Debt [Line Items] |
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| Basis spread on variable rate (as a percent) |
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3.00%
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| DZ Financing Program | Prime Rate | Letter of Credit |
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| Extinguishment of Debt [Line Items] |
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| Basis spread on variable rate (as a percent) |
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2.50%
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| Subsequent Event |
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| Extinguishment of Debt [Line Items] |
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| Taxes paid related to deferred employer payroll taxes related to the CARES Act |
$ 13,200,000
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| Minimum |
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| Extinguishment of Debt [Line Items] |
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| Approximate weekly employee compensation, payroll taxes and payments to vendors |
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$ 16,000,000.0
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| Target liquidity ratio |
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1.5
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| Minimum | DZ Financing Program |
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| Extinguishment of Debt [Line Items] |
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| Additional borrowing capacity of facility |
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$ 5,000,000.0
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| Increase (decrease) in borrowing capacity |
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1,000,000.0
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| Maximum |
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| Extinguishment of Debt [Line Items] |
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| Approximate weekly employee compensation, payroll taxes and payments to vendors |
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$ 17,000,000
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| Maximum | DZ Financing Program |
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| Extinguishment of Debt [Line Items] |
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| Additional borrowing capacity of facility |
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$ 7,000,000
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| Increase (decrease) in borrowing capacity |
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$ 3,000,000
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