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v3.20.1

Debt - Narrative (Details) - USD ($) | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
May 31, 2019 | Jan. 31, 2019 | Mar. 31, 2020 | Mar. 31, 2019 | Nov. 03, 2017
Debt Instrument [Line Items] |  |  |  |  |
Repayments of long-term debt |  |  | $ 0 | $ 12,500,000 |
Line of credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt |  |  | 1,300,000 |  |
Silicon Valley Bank | Line of credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | $ 35,000,000.0
Liquidity requirement, minimum |  |  | $ 40,000,000.0 |  |
Secured debt | Silicon Valley Bank | Line of credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | 25,000,000.0
Effective interest rate (as a percent) |  |  | 5.80% |  |
Balloon payment to be paid |  |  |  |  | 1,200,000
Secured debt | Silicon Valley Bank | Line of credit | London Interbank Offered Rate (LIBOR) |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate |  |  | 4.20% |  |
Secured debt | Silicon Valley Bank | Line of credit | London Interbank Offered Rate (LIBOR) | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate (as a percent) |  |  | 5.43% |  |
Revolving credit facility | Silicon Valley Bank | Line of credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Maximum borrowing capacity |  |  |  |  | $ 10,000,000.0
Repayments of long-term debt | $ 12,400,000 | $ 12,500,000 |  |  |
Revolving credit facility | Silicon Valley Bank | Line of credit | London Interbank Offered Rate (LIBOR) |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Basis spread on variable rate |  |  | 3.50% |  |
Revolving credit facility | Silicon Valley Bank | Line of credit | London Interbank Offered Rate (LIBOR) | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate (as a percent) |  |  | 4.70% |  |
Debt prepayment tranche one | Revolving credit facility | Silicon Valley Bank | Line of credit | London Interbank Offered Rate (LIBOR) |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Prepayment premium |  |  | $ 750,000 |  |
Debt prepayment tranche two | Revolving credit facility | Silicon Valley Bank | Line of credit | London Interbank Offered Rate (LIBOR) |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Prepayment premium |  |  | 500,000 |  |
Debt prepayment tranche three | Revolving credit facility | Silicon Valley Bank | Line of credit | London Interbank Offered Rate (LIBOR) |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Prepayment premium |  |  | $ 250,000 |  |

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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=109500613&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=119400593&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=6877327&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=6876686&loc=d3e534808-122878 + Details
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