Leases - Additional Information (Detail)	3 Months Ended
Mar. 31, 2019
Minimum [Member]
Lessee Lease Description [Line Items]
Operating and Finance leases, remaining lease terms	1 year
Maximum [Member]
Lessee Lease Description [Line Items]
Operating and Finance leases, remaining lease terms	10 years
Operating leases, options to extend leases term	5 years
Finance leases, options to extend leases term	5 years
Operating and Finance leases, options to terminate leases term	1 year

Lessee operating and finance leases options to terminate leases term.

No definition available.

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- Definition

Lessee operating and finance leases remaining lease term.

+ References

No definition available.

+ Details

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Namespace Prefix:	mdrx_
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Balance Type:	na
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- Definition

Term of lessee's finance lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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- Details

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- Details

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