Amortization expense for intangibles acquired net of tax.

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Amortization expense for intangibles acquired per diluted share.

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- Definition

Business acquisitions and goodwill.

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Consideration received per share in cash.

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Depreciation of the increased fair value of property, plant and Equipment net of tax.

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Depreciation of the increased fair value of property, plant and Equipment, per diluted share.

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- Definition

Interest expense net of tax.

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interest expense per diluted share.

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- Definition

Amount of potential cash payments that could result from the contingent consideration arrangement.

+ References

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Amount of cash paid to acquire the entity.

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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.

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The amount of acquisition cost of a business combination allocated to the noncurrent portion of the long-term debt assumed from the acquired entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 51

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 98-1

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 37

-Subparagraph g

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 59

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 23

-URI http://asc.fasb.org/extlink&oid=6909708&loc=d3e1043-128460

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

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Business Acquisitions and Goodwill (Details Textual)					3 Months Ended		9 Months Ended
Business Acquisitions and Goodwill (Details Textual)	Sep. 30, 2011 USD ($)	Dec. 30, 2010 USD ($)	Dec. 20, 2010 USD ($)	Oct. 05, 2010 USD ($)	Sep. 30, 2011 MAC Services Group Limited [Member] USD ($)	Sep. 30, 2010 MAC Services Group Limited [Member] USD ($)	Sep. 30, 2011 MAC Services Group Limited [Member] USD ($)	Sep. 30, 2010 MAC Services Group Limited [Member] USD ($)	Dec. 31, 2010 MAC Services Group Limited [Member] USD ($)	Dec. 31, 2010 MAC Services Group Limited [Member] AUD
Business Acquisition [Line Items]
Amount received by shareholder									$ 3.95	3.90
Business acquisition consideration paid by debt									$ 87,000,000
Acquisition related expenses					200,000		1,600,000
Depreciation of the increased fair value of property, plant and Equipment						2,200,000		6,600,000
Depreciation of the increased fair value of property, plant and Equipment, per diluted share						$ 0.04		$ 0.13
Amortization expense for intangibles acquired net of tax						1,500,000		4,500,000
Amortization expense for intangibles acquired per diluted share						$ 0.03		$ 0.09
Interest expense net of tax						2,700,000		8,100,000
Interest expense diluted per share						$ 0.05		$ 0.15
Business Acquisitions and Goodwill (Textual) [Abstract]
Consideration for business acquisition		638,000,000	47,100,000	30,200,000
Amount of Senior Secured Bank Facility	0
Estimated contingent consideration			$ 4,000,000