Revenue and Accounts Receivable - Long-Term Accounts Receivable and Contract Assets (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Revenue from Contract with Customer [Abstract]
Accounts Receivable, Noncurrent, Originated in Current Fiscal Year	$ 32,140
Accounts Receivable, Noncurrent, Originated in Fiscal Year before Latest Fiscal Year	20,900
Accounts Receivable, Noncurrent, Originated Two Years before Latest Fiscal Year	10,845
Accounts Receivable, Noncurrent, Originated Three Years before Latest Fiscal Year	1,093
Accounts Receivable, Noncurrent, Originated Four Years before Latest Fiscal Year	412
Accounts Receivable, Noncurrent, Not Past Due	$ 65,390

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as noncurrent.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522

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Amount of accounts receivable originated four years prior to latest fiscal year, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919232-210447

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Amount of accounts receivable originated in current fiscal year, classified as noncurrent.

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Amount of accounts receivable originated in fiscal year prior to latest fiscal year, classified as noncurrent.

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Amount of accounts receivable originated three years prior to latest fiscal year, classified as noncurrent.

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Amount of accounts receivable originated two years prior to latest fiscal year, classified as noncurrent.

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