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Commitments and Contingencies (Legal Proceedings) - Additional Information (Detail)		9 Months Ended
	Sep. 16, 2016 USD ($)	Sep. 30, 2015 USD ($) Plaintiff
Baldino Group [Member]
Commitments And Contingencies [Line Items]
Number of Plaintiffs | Plaintiff		2
Damages sought amount		$ 16,000,000
Altoona Regional Health System [Member] | Minimum [Member]
Commitments And Contingencies [Line Items]
Damages sought amount	$ 142,000,000

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- Definition

Commitments and contingencies.

+ References

No definition available.

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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- Definition

Number of plaintiffs that have filed claims pertaining to a loss contingency.

+ References

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