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Revenue from Contracts with Customers - Contract Acquisition Costs and Cost to Fulfill Contracts (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Mar. 31, 2018
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Disaggregation of Revenue [Line Items] |  |
Total capitalized contract costs | $ 10,410 | $ 9,735
Amortization of contract costs | 1,380 | 1,338
Prepaid expenses and other |  |
Disaggregation of Revenue [Line Items] |  |
Total capitalized contract costs | 4,721 | 4,580
Deferred charges and other assets |  |
Disaggregation of Revenue [Line Items] |  |
Total capitalized contract costs | $ 5,689 | $ 5,155

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- Definition Amount of accumulated amortization of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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- Definition Amount, before accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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