Revenue Recognition (Narrative) (Details) $ in Thousands	3 Months Ended
Jun. 30, 2020 USD ($)
Revenue from Contract with Customer [Line Items]
Percentage of deferred revenue balance expected to be recognized in one year or less	94.00%
Deferred revenue recognized	$ 113,032
Remaining performance obligation	$ 1,481,330
Over Time [Member]
Revenue from Contract with Customer [Line Items]
Percentage of revenue recognized	92.00%
Point in Time [Member]
Revenue from Contract with Customer [Line Items]
Percentage of revenue recognized	8.00%
Prepaid and Other Current Assets [Member] \| Obtain Contract [Member]
Revenue from Contract with Customer [Line Items]
Capitalized contract costs, current	$ 3,922
Prepaid and Other Current Assets [Member] \| Fulfill Contract [Member]
Revenue from Contract with Customer [Line Items]
Capitalized contract costs, current	3,209
Other Noncurrent Assets [Member] \| Obtain Contract [Member]
Revenue from Contract with Customer [Line Items]
Capitalized contract costs, noncurrent	5,769
Other Noncurrent Assets [Member] \| Fulfill Contract [Member]
Revenue from Contract with Customer [Line Items]
Capitalized contract costs, noncurrent	$ 5,511

Percentage of Deferred Revenue Balances Expected to be Recognized in One Year or Less

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- Definition

Percentage of Revenue Recognized

+ References

No definition available.

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Revenue from Contract with Customer [Line Items]

+ References

No definition available.

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- Definition

Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-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

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as noncurrent.

+ References

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130556-203045

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