Stockholders' Equity	6 Months Ended
Jun. 30, 2012
Stockholders' Equity Note [Abstract]
Stockholders' Equity	STOCKHOLDERS’ EQUITY In February 2012, Acacia raised gross proceeds of $225,000,000 through the sale of 6,122,000 shares of Acacia’s common stock at a price of $36.75 per share in a private placement offering with certain institutional accredited investors. Net proceeds, net of placement agent fees and estimated offering expenses, totaled approximately $218,983,000. Acacia intends to use the net proceeds of this private placement to finance pending and future acquisitions of patents and patent royalties and other patent licensing vehicles and companies with patent assets, and for working capital and general corporate purposes. In March 2011, Acacia completed a registered public offering of 5,750,000 shares of common stock. The public offering price was $31.50 per share, and the net proceeds to the Company totaled approximately $175,232,000, after deducting underwriting discounts and related offering expenses. Acacia retained broad discretion over the use of the net proceeds from this sale of common stock, including the use of the net proceeds for operations and for other general corporate purposes, including, but not limited to, working capital, strategic acquisitions and other transactions.

STOCKHOLDERS’ EQUITY

In February 2012, Acacia raised gross proceeds of $225,000,000 through the sale of 6,122,000 shares of Acacia’s common stock at a price of $36.75 per share in a private placement offering with certain institutional accredited investors. Net proceeds, net of placement agent fees and estimated offering expenses, totaled approximately $218,983,000. Acacia intends to use the net proceeds of this private placement to finance pending and future acquisitions of patents and patent royalties and other patent licensing vehicles and companies with patent assets, and for working capital and general corporate purposes.

In March 2011, Acacia completed a registered public offering of 5,750,000 shares of common stock. The public offering price was $31.50 per share, and the net proceeds to the Company totaled approximately $175,232,000, after deducting underwriting discounts and related offering expenses. Acacia retained broad discretion over the use of the net proceeds from this sale of common stock, including the use of the net proceeds for operations and for other general corporate purposes, including, but not limited to, working capital, strategic acquisitions and other transactions.