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Shareholder's equity
 12 Months Ended
Dec. 31, 2014
Stockholders Equity Note [Abstract]  
Stockholders' equity

8.

Stockholders’ equity

The Company has not paid dividends to holders of its common stock in the past. The Company currently intends to retain all of its consolidated earnings to finance credit agreement obligations and to finance the continued growth of its business. Certain subsidiaries of the Company have restrictions on their ability to pay dividends in certain circumstances pursuant to the Credit Agreement. The Company does not have present intentions to pay dividends in the foreseeable future.

In the event that the Company decides to pay a dividend to holders of its common stock in the future with dividends received from its subsidiaries, the Company may, based on prevailing rates of taxation, be required to pay additional withholding and income tax on such amounts received from its subsidiaries.