Acquisitions Pro Forma (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Business Acquisition [Line Items]
Revenues	$ 82,396us-gaap_Revenues	$ 67,507us-gaap_Revenues
Business Acquisition, Pro Forma Revenue	83,523
Net Income (Loss) Attributable to Parent	198us-gaap_NetIncomeLoss	11,389us-gaap_NetIncomeLoss
Business Acquisition, Pro Forma Net Income (Loss)	275
Earnings Per Share, Diluted	$ 0.01us-gaap_EarningsPerShareDiluted	$ 0.65us-gaap_EarningsPerShareDiluted
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 0.01
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Revenues	1,127
Net Income (Loss) Attributable to Parent	$ 77
Earnings Per Share, Diluted	$ 0.00

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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