Treasury Stock	9 Months Ended
Sep. 30, 2013
Equity [Abstract]
Treasury Stock	Note 9. Treasury Stock At December 31, 2012, we had $350.1 million remaining under authorizations from our Board of Directors for the repurchase of our common stock from time to time through and including December 31, 2014. On November 19, 2012, we commenced a “modified Dutch auction” tender offer to purchase up to $250.0 million of our common stock. Pursuant to the tender offer, which expired on February 5, 2013, we purchased 5,524,861 shares of our common stock from our stockholders on February 8, 2013 at a price of $45.25 per share, for a total purchase price of $250.0 million, exclusive of $1.0 million of fees and expenses. During the nine months ended September 30, 2013, we repurchased an additional 354,154 shares of our common stock at an average price per share of $46.90, for a total purchase price of $16.6 million. Accordingly, at September 30, 2013, we had $83.5 million remaining under authorizations from our Board of Directors for the repurchase of our common stock from time to time through and including December 31, 2014. During the first nine months of 2013, we issued 149,304 treasury shares which had an average cost of $6.63 per share for restricted stock units that vested during the period. In accordance with the Silgan Holdings Inc. 2004 Stock Incentive Plan, we repurchased 58,812 shares of our common stock at an average cost of $43.55 to satisfy minimum employee withholding tax requirements resulting from certain restricted stock units becoming vested. We account for treasury shares using the first-in, first-out (FIFO) cost method. As of September 30, 2013, 24,140,804 shares of our common stock were held in treasury.

Note 9. Treasury Stock

At December 31, 2012, we had $350.1 million remaining under authorizations from our Board of Directors for the repurchase of our common stock from time to time through and including December 31, 2014.

On November 19, 2012, we commenced a “modified Dutch auction” tender offer to purchase up to $250.0 million of our common stock. Pursuant to the tender offer, which expired on February 5, 2013, we purchased 5,524,861 shares of our common stock from our stockholders on February 8, 2013 at a price of $45.25 per share, for a total purchase price of $250.0 million, exclusive of $1.0 million of fees and expenses.

During the nine months ended September 30, 2013, we repurchased an additional 354,154 shares of our common stock at an average price per share of $46.90, for a total purchase price of $16.6 million. Accordingly, at September 30, 2013, we had $83.5 million remaining under authorizations from our Board of Directors for the repurchase of our common stock from time to time through and including December 31, 2014.

During the first nine months of 2013, we issued 149,304 treasury shares which had an average cost of $6.63 per share for restricted stock units that vested during the period. In accordance with the Silgan Holdings Inc. 2004 Stock Incentive Plan, we repurchased 58,812 shares of our common stock at an average cost of $43.55 to satisfy minimum employee withholding tax requirements resulting from certain restricted stock units becoming vested.

We account for treasury shares using the first-in, first-out (FIFO) cost method. As of September 30, 2013, 24,140,804 shares of our common stock were held in treasury.