Organization and Basis of Presentation (Details) $ in Thousands	Jun. 30, 2016 USD ($) country office state	Dec. 31, 2015 USD ($)
Organization And Basis Of Presentation [Line Items]
Number of foreign jurisdiction \| country	5
Percentage of controlling interest owned by the company in OMHHF	83.68%
Noncontrolling interest \| $	$ 8,200	$ 7,024
United States [Member]
Organization And Basis Of Presentation [Line Items]
Number of Stores \| office	94
Number of states in which an entity operates \| state	24

Organization and basis of presentation.

No definition available.

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- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.31)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 27
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 20
-Article 7

+ Details

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

+ Details

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- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

No definition available.

+ Details

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- Definition

Represents the number of stores.

+ References

No definition available.

+ Details

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- Details

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