XML 63 R44.htm IDEA: XBRL DOCUMENT
v3.21.2

Equity-Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Share-based Payment Arrangement [Abstract] |
Schedule of fair value of unit options issued |
|  | Year Ended December 31
2020 |  | 2019
Expected volatility |  | 59.50% |  | 55.00%
Expected term (years) |  | 6.25 |  | 6.25
Expected dividends |  | None |  | None
Risk-free rate |  | 0.65% |  | 1.3%–3.1%
Schedule of activity under the plan |
|  | Options to Acquire Units |  | Weighted Average Exercise Price per Unit |  | Aggregate Intrinsic Value
(in thousands, except per unit data)
Options outstanding at December 31, 2019 |  | 2,578 |  |  | $ | 1.32 |  | $ | —
Granted |  | 5,478 |  |  |  | 0.10 |  |  |
Cancelled |  | (2,422 | ) |  |  | 1.27 |  |  |
Exercised |  | (12 | ) |  |  | 0.28 |  |  |
Options outstanding at December 31, 2020 |  | 5,622 |  |  | $ | 0.15 |  | $ | 6,481
Options exercisable at December 31, 2020 |  | 1,990 |  |  | $ | 0.23 |  | $ | 2,205
Schedule of weighted average grant date fair value under the plan |
|  |  |  | Total |  | Weighted-Average Grant-Date Fair Value
|  |  |  | (in thousands, except per unit data)
Options nonvested at January 1, 2019 |  | 431 |  | 0.38
Options granted in 2019 |  | 34 |  | —
Options vested in 2019 |  | 174 |  | 0.53
Options nonvested at December 31, 2019 |  | 247 |  | 0.21
Options granted in 2020 |  | 5,478 |  | 1.19
Options vested in 2020 |  | 1,878 |  | 1.17
Options nonvested at December 31, 2020 |  | 3,644 |  | 1.19
Schedule of weighted average grant date fair value under the plan |
|  | Profit Interest Units |  | Weighted Average Distribution Hurdle per Unit |  | Aggregate Intrinsic Value
(in thousands, except per unit data)
Units outstanding at January 1, 2020 |  | 5,675 |  |  | 1.75 |  | —
Granted |  | 4,844 |  |  | 0.10 |  |
Cancelled |  | (4,856 | ) |  | 1.83 |  |
Units outstanding at December 31, 2020 |  | 5,663 |  |  | 0.26 |  | 5,923
Units vested at December 31, 2020 |  | 5,157 |  |  | 0.27 |  | 5,565
Schedule of weighted average grant date fair value under the plan |
|  | Total |  | Weighted-Average Grant-Date Fair Value
|  | (in thousands, except per unit data)
Units nonvested at January 1, 2019 |  | 810 |  | $ | —
Units granted in 2019 |  | — |  |  | —
Units vested in 2019 |  | 229 |  |  | —
Units nonvested at December 31, 2019 |  | 482 |  |  | —
Units granted in 2020 |  | 4,844 |  |  | 1.27
Units vested in 2020 |  | 5,011 |  |  | 1.27
Units nonvested at December 31, 2020 |  | 303 |  |  | 1.27
|  | Total |  | Weighted-Average Grant-Date Fair Value
(in thousands, except per unit data)
Units granted in 2020 |  | 4,484 |  | 1.28
Units vested in 2020 |  | 4,315 |  | 1.28
Units nonvested at December 31, 2020 |  | 169 |  | 1.28
Schedule of distribution hurdles per unit for Profits Interest Units outstanding |
|  | Distribution Hurdle |  | December 31,
2020 |  | 2019
|  | (in thousands)
Class B-1 Common Units |  | 0.10 |  | 4,345 |  | —
Class B-1 Common Units |  | 1.00 |  | 605 |  | 2,905
Class B-1 Common Units |  | 2.00 |  | 164 |  | 1,561
Class B-1 Common Units |  | 2.50 |  | 49 |  | 701
Class B-2 Common Units |  | 0.10 |  | 250 |  | —
Class B-3 Common Units |  | 0.10 |  | 250 |  | —
Class B-2 Common Units |  | 3.38 |  | — |  | 250
Class B-3 Common Units |  | 5.07 |  | — |  | 250
Total profit interests outstanding |  |  |  | 5,663 |  | 5,667
Schedule of total equity-based compensation expense |
|  | Year Ended December 31,
2020 |  | 2019
(in thousands)
Operations |  | $ | 893 |  | $ | 16
Research and development |  |  | 1,994 |  |  | 41
General and administrative |  |  | 4,476 |  |  | 13
Total equity-based compensation |  | $ | 7,363 |  | $ | 70

X
- References No definition available. + Details
Name: | nn_ScheduleOfActivityUnderThePlanTableTextBlock
Namespace Prefix: | nn_
Data Type: | dtr:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | nn_ScheduleOfDistributionHurdlesPerUnitForProfitsInterestUnitsOutstandingTableTextBlock
Namespace Prefix: | nn_
Data Type: | dtr:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | nn_ScheduleOfTotalEquitybasedCompensationExpenseTableTextBlock
Namespace Prefix: | nn_
Data Type: | dtr:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information about asset and liability measured at fair value under fair value option. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14210-108612 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14172-108612 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14217-108612 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 + Details
Name: | us-gaap_FairValueOptionQuantitativeDisclosuresTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock options and stock appreciation rights that were outstanding at the beginning and end of the year, exercisable at the end of the year, and the number of stock options and stock appreciation rights that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsAndStockAppreciationRightsAwardActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted-average grant-date fair value of equity options or other equity instruments granted during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration