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Revenue Recognition - Additional Information (Details) | 3 Months Ended
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Mar. 31, 2018
Revenue from Contract with Customer [Abstract] |
Description of payment terms | In circumstances where credit is extended, payment terms generally range from 30 to 120 days and customer deposits may be required.

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- Definition Description of payment terms in contract with customer. Includes, but is not limited to, timing of payment, existence of financing component, variability of consideration and constraint on variable consideration. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130554-203045 + Details
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