Common Stock (Details)	Dec. 31, 2015 shares
Common Stock [Abstract]
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	3,500,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	778,000

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

No definition available.

Name:	us-gaap_StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant