XML 50 R36.htm IDEA: XBRL DOCUMENT
v3.19.2

Shared-Based Compensation (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Share-based Payment Arrangement [Abstract] |
Components of Share-Based Compensation Expense by Type of Award | The following table lists the components of share-based compensation expense by type of award.
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2019 |  | 2018 |  | 2019 |  | 2018
Stock options |  | $ | 169 |  |  | $ | 152 |  |  | $ | 361 |  |  | $ | 358 |
Restricted stock |  | 502 |  |  | 397 |  |  | 961 |  |  | 856 |
Performance share units |  | 435 |  |  | 529 |  |  | 657 |  |  | 1,120 |
Share-based compensation expense |  | $ | 1,106 |  |  | $ | 1,078 |  |  | $ | 1,979 |  |  | $ | 2,334 |
Weighted Average Assumptions Relevant to Determining the Fair Value at the Dates of Grant and Stock Option Modification | The following table shows the weighted average assumptions relevant to determining the fair value of stock options granted in 2019.
| 2019
Expected term | 6 years |
Risk free interest rate | 2.47 | %
Dividend yield | 3.53 | %
Expected volatility | 49.53 | %
Expected forfeiture rate | 4.00 | %
Reconciliation of Option Activity | The following table summarizes stock option activity for the six months ended June 30, 2019.
|  | Number of Options (in thousands) |  | Weighted- Average Exercise Price (per share) |  | Weighted- Average Remaining Contractual Term (years) |  | Aggregate Intrinsic Value |  |
Outstanding at January 1, 2019 |  | 771 |  |  | $ | 15.17 |  |  |  |  |  |  |
Granted |  | 210 |  |  | 7.93 |  |  |  |  |  |  |
Exercised |  | — |  |  |  |  |  |  |  | $ | — |  |  |
Forfeited or expired |  | (5 | ) |  | 24.41 |  |  |  |  |  |  |
Outstanding at June 30, 2019 |  | 976 |  |  | $ | 13.56 |  |  | 6.1 |  | $ | — |  |  | (1)
Exercisable at June 30, 2019 |  | 701 |  |  | $ | 14.26 |  |  | 4.8 |  | $ | — |  |  | (1)
_______________________________
(1) | The aggregate intrinsic value is the sum of intrinsic values for each exercisable individual option grant. The intrinsic value is the amount by which the closing market price of our stock at June 30, 2019, was greater than the exercise price of any individual option grant.
Reconciliation of Restricted Stock Option Activity | The following table summarizes the status of unvested restricted stock awards as of June 30, 2019, and changes during the six months then ended.
|  | Nonvested Restricted Shares (in thousands) |  | Weighted Average Grant-Date Fair Value (per share)
Nonvested at January 1, 2019 |  | 146 |  |  | $ | 22.07 |
Granted |  | 281 |  |  | 7.93 |
Vested |  | (70 | ) |  | 20.92 |
Forfeited |  | (18 | ) |  | 18.98 |
Nonvested at June 30, 2019 |  | 339 |  |  | $ | 10.74 |
Schedule of Performance Based Awards Goals with Respect to TSR and ROIC | The following table presents the goals with respect to TSR Awards and ROIC Awards granted in 2019.
TSR Awards: |  | Threshold Performance (50% of Shares) |  | Target Performance (100% of Shares) |  | Maximum Performance (150% of Shares)
2019 grants |  | 35th Percentile |  | 50th Percentile |  | 75th Percentile
ROIC Awards: |  | Threshold Performance (35% of Shares) |  | Target Performance (100% of Shares) |  | Maximum Performance (150% of Shares)
2019 grants (1) |  | 4.7 | % |  | 5.8 | % |  | 7.0 | %
(1) | For the ROIC Awards granted in 2019, the denominator of the calculation is different than in prior years, and therefore the target percentages are not comparable to historical target percentages.
Schedule of Number of Awards Granted and Grant Date Fair Value of Each Award in Periods | The following table presents the number of awards granted and the grant date fair value of each award in the period presented.
|  | TSR Awards |  | ROIC Awards
Award Year |  | Shares (in thousands) |  | Grant Date Fair Value (per share) |  | Shares (in thousands) |  | Grant Date Fair Value (per share)
2019 |  | 136 |  |  | $ | 9.28 |  |  | 174 |  |  | $ | 7.93 |
Summary of Status of Unvested PSU Awards | The following table summarizes the status of unvested PSUs as of June 30, 2019, and changes during the six months then ended.
|  | Nonvested TSR Awards |  | Nonvested ROIC Awards
|  | Shares (in thousands) |  | Weighted Average Grant-Date Fair Value (per share) |  | Shares (in thousands) |  | Weighted Average Grant-Date Fair Value (per share)
Nonvested at January 1, 2019 |  | 94 |  |  | $ | 26.84 |  |  | 100 |  |  | $ | 24.39 |
Granted |  | 136 |  |  | 9.28 |  |  | 174 |  |  | 7.93 |
Forfeited |  | — |  |  | — |  |  | — |  |  | — |
Nonvested at June 30, 2019 |  | 230 |  |  | $ | 16.47 |  |  | 274 |  |  | $ | 13.93 |

X
- Definition Schedule Of Performance Unit Awards Based On Expected Performance [Table Text Block] + References No definition available. + Details
Name: | nnbr_ScheduleOfPerformanceUnitAwardsBasedOnExpectedPerformanceTableTextBlock
Namespace Prefix: | nnbr_
Data Type: | nonnum: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 share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_DisclosureOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock shares. + 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) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + 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)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfNonvestedPerformanceBasedUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of activity for outstanding award under share-based payment arrangement excluding share and unit options and nonvested award. + 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)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfOtherShareBasedCompensationActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum: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=116856206&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=116856206&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=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardEmployeeStockPurchasePlanValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration