Related Party Transactions (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Related Party Transaction [Line Items]
Interest Expense, Related Party	$ 0	$ 26,883
Community Health Systems, Inc [Member]
Related Party Transaction [Line Items]
Interest Expense, Related Party		26,900
Community Health Systems, Inc [Member] \| Transition Services Agreements
Related Party Transaction [Line Items]
Terms of transitional service agreements	5 years
Community Health Systems, Inc [Member] \| Transition Services Agreements and Allocation from Parent Prior to Spin-Off [Member]
Related Party Transaction [Line Items]
Total expenses incurred and allocation from parent	$ 16,300	$ 16,300
Community Health Systems, Inc [Member] \| Minimum [Member]
Related Party Transaction [Line Items]
Related party transaction, rate	4.00%
Community Health Systems, Inc [Member] \| Maximum [Member]
Related Party Transaction [Line Items]
Related party transaction, rate	7.00%

Transition services and other ancillary agreements term.

No definition available.

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Namespace Prefix:	qhc_
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- Definition

Amount of interest expense incurred on a debt or other obligation to related party.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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