v3.8.0.1

Accrued Liabilities | 12 Months Ended
--- | ---
Dec. 31, 2017
Accrued Liabilities, Current [Abstract] |
Accrued Liabilities | Accrued Liabilities Accrued liabilities consist of the following as of December 31:
In Thousands | 2017 |  | 2016
Sales volume discounts payable | $ | 17,386 |  |  | $ | 13,590 |
Property taxes payable | 3,802 |  |  | 3,932 |
Accrued salaries | 8,318 |  |  | 6,198 |
Other accrued liabilities | 5,499 |  |  | 4,266 |
Total accrued liabilities | $ | 35,005 |  |  | $ | 27,986 |

X
- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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