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Financing Arrangements and Fair Value of Financial Instruments - Narrative (Details) |  |  | 1 Months Ended | 3 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May 02, 2022 USD ($) | Feb. 28, 2021 USD ($) | Apr. 30, 2022 GBP (£) | Dec. 31, 2021 USD ($) | Aug. 31, 2021 USD ($) | Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($) | May 04, 2022 | May 02, 2022 GBP (£) | Apr. 30, 2022 USD ($) | Apr. 30, 2022 GBP (£) | Feb. 28, 2021 GBP (£) | Dec. 31, 2016 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchases of Convertible Notes |  |  |  |  |  | $ 0 | $ 18,107,000 |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  | 0 | 790,000 |  |  |  |  |  |
Borrowings on lines of credit |  |  |  |  |  | 69,188,000 | 51,922,000 |  |  |  |  |  |
Letters of credit outstanding, amount |  |  |  |  |  | 47,000,000 |  |  |  |  |  |  |
Proceeds from financing obligation |  |  |  |  | $ 7,900,000 |  |  |  |  |  |  |  |
Principal amount outstanding |  |  |  | $ 114,991,000 |  | 116,397,000 |  |  |  |  |  |  |
Long-term debt |  |  |  | 114,803,000 |  | 116,242,000 |  |  |  |  |  |  |
Current debt |  |  |  | 19,210,000 |  | 20,767,000 |  |  |  |  |  |  |
Restricted cash and cash equivalents, current |  |  |  |  |  | 4,800,000 |  |  |  |  |  |  |
Foreign operations |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  | 11,800,000 |  | 14,500,000 |  |  |  |  |  |  |
Subsequent event | Foreign operations |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | £ |  |  |  |  |  |  |  |  | £ 11,200,000 |  |  |  |
Revolving credit facility | U.K. Subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  | $ 8,300,000 |  |  |  |  |  |  |  |  |  | £ 6,000,000 |
Quarterly principal payment |  | 375,000 |  |  |  |  |  |  |  |  |  |  |
Balloon payment |  | $ 1,500,000 |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  | 5,400,000 |  |  |  |  |  |  |
Revolving credit facility | U.K. Subsidiary | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  | $ 2,600,000 | £ 2,000,000 |  |
Quarterly principal payment | £ |  |  | £ 350,000 |  |  |  |  |  |  |  |  |  |
Balloon payment | £ |  |  |  |  |  |  |  |  |  |  | 2,800,000 |  |
Revolving credit facility | SONIA member | U.K. Subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  | 3.50% |  |  |  |  |  |  |  |  |  |  |
Revolving credit facility | SONIA member | U.K. Subsidiary | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 3.25% |  |  |  |  |  |  |  |  |  |
Convertible Notes due 2021 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Purchases of Convertible Notes |  |  |  | 38,600,000 |  |  |  |  |  |  |  |  |
Repurchased face amount |  |  |  |  |  |  | 18,300,000 |  |  |  |  |  |
Cost of repurchase |  |  |  |  |  |  | 18,100,000 |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  | $ 800,000 |  |  |  |  |  |
Convertible Notes due 2021 | Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000,000
Interest rate, stated percentage |  |  |  |  |  |  |  |  |  |  |  |  | 4.00%
ABL Facility | Revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  | 200,000,000 |  |  |  |  |  |  |
Maximum borrowing capacity, option to increase |  |  |  |  |  | 275,000,000 |  |  |  |  |  |  |
Borrowings on lines of credit |  |  |  |  |  | 87,900,000 |  |  |  |  |  |  |
Letters of credit outstanding, amount |  |  |  |  |  | 1,100,000 |  |  |  |  |  |  |
Current borrowing capacity |  |  |  |  |  | 116,000,000 |  |  |  |  |  |  |
Remaining borrowing capacity |  |  |  |  |  | $ 27,000,000 |  |  |  |  |  |  |
Unused capacity, commitment fee percentage |  |  |  |  |  | 0.375% |  |  |  |  |  |  |
Debt, weighted average interest rate |  |  |  |  |  | 1.90% |  |  |  |  |  |  |
Principal amount outstanding |  |  |  | 86,500,000 |  | $ 87,900,000 |  |  |  |  |  |  |
Long-term debt |  |  |  | 86,500,000 |  | 87,900,000 |  |  |  |  |  |  |
ABL Facility | Revolving credit facility | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | $ 175,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity, option to increase | 250,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Borrowings on lines of credit | $ 94,100,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term | 5 years |  |  |  |  |  |  |  |  |  |  |  |
Letters of credit outstanding, amount | $ 1,100,000 |  |  |  |  |  |  |  |  |  |  |  |
Current borrowing capacity | 133,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Remaining borrowing capacity | $ 38,400,000 |  |  |  |  |  |  |  |  |  |  |  |
Unused capacity, commitment fee percentage | 0.375% |  |  |  |  |  |  |  |  |  |  |  |
Threshold for commitment fee | 50.00% |  |  |  |  |  |  |  | 50.00% |  |  |  |
Average daily unused portion, commitment fee | 0.25% |  |  |  |  |  |  |  | 0.25% |  |  |  |
Fixed charge coverage ratio |  |  |  |  |  |  |  | 1.00 |  |  |  |  |
Line of credit facility, covenant, minimum, fixed charge leverage ratio |  |  |  |  |  |  |  | 4.00 |  |  |  |  |
ABL Facility | Revolving credit facility | Base Rate | Minimum | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 0.50% |  |  |  |  |  |  |  |  |  |  |  |
ABL Facility | Revolving credit facility | Base Rate | Maximum | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 1.00% |  |  |  |  |  |  |  |  |  |  |  |
ABL Facility | Revolving credit facility | Fed Funds Effective Rate Overnight Index Swap Rate | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 0.50% |  |  |  |  |  |  |  |  |  |  |  |
ABL Facility | Revolving credit facility | BSBY | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 1.00% |  |  |  |  |  |  |  |  |  |  |  |
ABL Facility | Revolving credit facility | BSBY | Minimum | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 1.50% |  |  |  |  |  |  |  |  |  |  |  |
ABL Facility | Revolving credit facility | BSBY | Maximum | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate | 2.00% |  |  |  |  |  |  |  |  |  |  |  |
Financing obligations |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, weighted average interest rate |  |  |  |  | 5.40% |  |  |  |  |  |  |  |
Principal amount outstanding |  |  |  | 6,688,000 |  | 5,838,000 |  |  |  |  |  |  |
Long-term debt |  |  |  | 6,610,000 |  | 5,772,000 |  |  |  |  |  |  |
Term loan | Revolving credit facility |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount outstanding |  |  |  | 6,094,000 |  | 5,443,000 |  |  |  |  |  |  |
Long-term debt |  |  |  | $ 5,984,000 |  | $ 5,354,000 |  |  |  |  |  |  |
Term loan | Secured Debt | U.K. Subsidiary | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  |  |  |  |  |  | $ 9,100,000 | £ 7,000,000 |  |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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