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Concentration of Business, Significant Customers and Credit Risk (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Mar. 31, 2016 USD ($) | Sep. 30, 2016 USD ($) supplier tannery | Sep. 30, 2015 USD ($) | Sep. 30, 2016 USD ($) supplier tannery | Sep. 30, 2015 USD ($) | Mar. 31, 2015 USD ($)
Concentration of Business, Significant Customers and Credit Risk [Line Items] |  |  |  |  |  |
Property and equipment, net | $ 237,246 | $ 246,723 |  | $ 246,723 |  |
Number of tanneries | tannery |  | 2 |  | 2 |  |
Number of suppliers | supplier |  | 1 |  | 1 |  |
Cash equivalents | 195,575 | $ 65,312 |  | $ 65,312 |  |
Cash | 50,381 | 44,735 |  | 44,735 |  |
Total cash and cash equivalents | $ 245,956 | $ 110,047 | $ 99,775 | $ 110,047 | $ 99,775 | $ 225,143
International net sales |  |  |  |  |  |
Concentration of Business, Significant Customers and Credit Risk [Line Items] |  |  |  |  |  |
Concentration risk (as a percent) |  | 35.70% | 38.10% | 36.10% | 37.80% |
Net trade accounts receivable |  |  |  |  |  |
Concentration of Business, Significant Customers and Credit Risk [Line Items] |  |  |  |  |  |
Number of customers | one |  |  |  |  |
Customer One | Net trade accounts receivable |  |  |  |  |  |
Concentration of Business, Significant Customers and Credit Risk [Line Items] |  |  |  |  |  |
Concentration risk (as a percent) | 12.80% |  |  |  |  |
US |  |  |  |  |  |
Concentration of Business, Significant Customers and Credit Risk [Line Items] |  |  |  |  |  |
Property and equipment, net | $ 211,111 | $ 220,681 |  | $ 220,681 |  |
All other countries |  |  |  |  |  |
Concentration of Business, Significant Customers and Credit Risk [Line Items] |  |  |  |  |  |
Property and equipment, net | $ 26,135 | $ 26,042 |  | $ 26,042 |  |
Concentration risk (as a percent) |  | 28.20% | 28.90% | 27.30% | 26.80% |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3044-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of risks that arise due to the volume of business transacted with a particular customer. At a minimum, the description informs financial statement users of the general nature of the risk, but excludes "Information about Major Customers" that may be disclosed elsewhere (for instance, segment disclosures). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6327-108592 + Details
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- Definition Investment in short-term money-market instruments (such as commercial paper, banker's acceptances, repurchase agreements, government securities, certificates of deposit, and so forth) which are highly liquid (that is, readily convertible to known amounts of cash) and so near their maturity that they present an insignificant risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify as cash equivalents by definition. Original maturity means an original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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