Goodwill and Other Intangible Assets - Additional Information (Detail)	6 Months Ended	12 Months Ended
Jun. 30, 2016 Community Country	Dec. 31, 2015 Unit
Goodwill [Line Items]
Multiplication Value to Cash flows for the determination of fair value of Reporting units \| Unit		8
Reporting unit percentage of fair value in excesses of carrying value amount		10.00%
U.S. Operating Segment
Goodwill [Line Items]
Number of reporting unit \| Community	19
International Operating Segment
Goodwill [Line Items]
Number of reporting unit \| Country	7

Multiplication value to Cash flows for the determination of fair value of reporting units.

No definition available.

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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

Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Reporting Unit
-URI http://asc.fasb.org/extlink&oid=6523643

+ Details

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- Definition

Percentage of fair value of reporting unit in excess of carrying amount.

+ References

No definition available.

+ Details

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