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Shareholder Transaction Shareholder Transaction
6 Months Ended
Jun. 30, 2014
Shareholder Transaction [Abstract]  
Shareholder Transaction
Shareholder Transaction
On July 8, 2014, we entered into a share repurchase agreement, at the prevailing market price, with a shareholder that beneficially held slightly less than 10% of our outstanding common stock to purchase 13,213,372 shares of our common stock for the aggregate purchase price of $311,464,283 in a private transaction. We used cash on hand to fund the transaction which settled on July 10, 2014, and the repurchased shares have been returned to treasury stock.