XML 38 R26.htm IDEA: XBRL DOCUMENT
v3.19.1

Leases (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2019
Leases [Abstract] |
Assets and liabilities, lease |
| March 31, 2019 |  | January 1, 2019
Assets |  |  |
Operating lease right-of-use assets | $ | 21,777 |  |  | $ | 23,143 |
Liabilities |  |  |
Current | 4,088 |  |  | 4,426 |
Long-term | 18,818 |  |  | 19,566 |
Total operating lease liabilities | $ | 22,906 |  |  | $ | 23,992 |
Lessee, operating lease, liability, maturity | The approximate aggregate commitments under non-cancelable operating leases in effect at March 31, 2019 and December 31, 2018, were as follows (dollar amounts in thousands):
| March 31, 2019 |  | December 31, 2018
2019 | $ | 4,155 |  |  | $ | 5,646 |
2020 | 4,671 |  |  | 4,692 |
2021 | 3,792 |  |  | 3,864 |
2022 | 2,326 |  |  | 2,367 |
2023 | 1,985 |  |  | 2,162 |
Thereafter | 10,167 |  |  | 10,296 |
Total lease payments | $ | 27,096 |  |  | $ | 29,027 |
Less: Imputed interest (1) | 4,190 |  |  |
Present value of lease liabilities | $ | 22,906 |  |  |
(1) Calculated using our corporate borrowing rate based on the term of each lease ranging from 4.09% to 4.29%.

X
- Definition Assets And Liabilities, Lease [Table Text Block] + References No definition available. + Details
Name: | natr_AssetsAndLiabilitiesLeaseTableTextBlock
Namespace Prefix: | natr_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration