Share Repurchase Program	12 Months Ended
Dec. 31, 2012
Equity [Abstract]
Share Repurchase Program	Share Repurchase Program On October 24, 2012, the Company's Board of Directors conditionally authorized a share repurchase program of the Company's common stock subject to the approval of the Audit Committee of the Board of Directors. On October 29, 2012, the Audit Committee approved a share repurchase program for up to $60.0 million of the Company's common stock. The share repurchase authorization, which is effective immediately, permits the Company to effect repurchases for cash from time to time through open market, privately negotiated or other transactions, including pursuant to trading plans established in accordance with Rules 10b5-1 and 10b-18 of the Securities Exchange Act of 1934, as amended, or by a combination of such methods. The repurchase program does not obligate the Company to repurchase any dollar amount or number of shares and the program may be suspended or discontinued at any time. As of December 31, 2012, the remaining authorized amount for stock repurchases under the share repurchase program was $56.2 million. All repurchased shares of common stock have been retired. Between October 29, 2012 and December 31, 2012, the Company repurchased 137,262 shares of its outstanding common stock at an average of $27.34 per share pursuant to the share repurchase program.

Share Repurchase Program

On October 24, 2012, the Company's Board of Directors conditionally authorized a share repurchase program of the Company's common stock subject to the approval of the Audit Committee of the Board of Directors. On October 29, 2012, the Audit Committee approved a share repurchase program for up to $60.0 million of the Company's common stock. The share repurchase authorization, which is effective immediately, permits the Company to effect repurchases for cash from time to time through open market, privately negotiated or other transactions, including pursuant to trading plans established in accordance with Rules 10b5-1 and 10b-18 of the Securities Exchange Act of 1934, as amended, or by a combination of such methods. The repurchase program does not obligate the Company to repurchase any dollar amount or number of shares and the program may be suspended or discontinued at any time. As of December 31, 2012, the remaining authorized amount for stock repurchases under the share repurchase program was $56.2 million.

All repurchased shares of common stock have been retired. Between October 29, 2012 and December 31, 2012, the Company repurchased 137,262 shares of its outstanding common stock at an average of $27.34 per share pursuant to the share repurchase program.