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Equity Offering (Notes) | 9 Months Ended
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Sep. 30, 2013
Equity Offering [Abstract] |
Equity Offering [Text Block] | Equity Offering In September 2013, the Company issued 5,175,000 shares of its common stock via a public offering at a price of $35.40 per share. Net proceeds from the offering, after deducting underwriting discounts, commissions and offering expenses of approximately $8.5 million, totaled approximately $174.7 million. The net proceeds will be used for general corporate purposes, including future acquisitions, capital expenditures and working capital requirements.

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