Percentage change in discount rate used to evaluate fair value of reporting unit for goodwill assessment.

No definition available.

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- Definition

Percentage change in operating income used to evaluate fair value of reporting unit for goodwill assessment.

+ References

No definition available.

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- Definition

Potential Impact On Fair Value For Basis Point Increase In Discount Rate

+ References

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- Definition

Potential Impact On Fair Value For Reduction In Operating Income

+ References

No definition available.

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- Definition

Reporting unit percentage of fair value in excess of short of carrying amount.

+ References

No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

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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.

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Goodwill - Schedule of Reporting Units Goodwill Balances (Details) - USD ($)	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Line Items]
Goodwill	$ 9,415,877,000	$ 9,407,317,000	$ 9,294,479,000
Percentage Change In Operating Income Used To Evaluate Fair Value Of Reporting Unit For Goodwill Assessment	3.00%
Percentage Change In Discount Rate Used To Evaluate Fair Value Of Reporting Unit For Goodwill Assessment	1.00%
DMG
Goodwill [Line Items]
Goodwill	$ 2,873,032,000	$ 3,391,942,000	$ 3,398,264,000
DMG \| CALIFORNIA
Goodwill [Line Items]
Goodwill	$ 1,888,609,000
Carrying amount coverage	0.00%
Sensitivities, operating income	(3.00%)
Sensitivities, discount rate	(5.80%)
DMG \| FLORIDA
Goodwill [Line Items]
Goodwill	$ 378,071,000
Carrying amount coverage	0.00%
Sensitivities, operating income	(0.90%)
Sensitivities, discount rate	(3.30%)
DMG \| NEW MEXICO
Goodwill [Line Items]
Goodwill	$ 56,293,000
Carrying amount coverage	0.00%
Sensitivities, operating income	(1.10%)
Sensitivities, discount rate	(2.10%)
DMG \| WASHINGTON
Goodwill [Line Items]
Goodwill	$ 247,552,000
Carrying amount coverage	17.10%
Sensitivities, operating income	(1.70%)
Sensitivities, discount rate	(3.40%)
Vascular Access Clinic
Goodwill [Line Items]
Goodwill	$ 0