Employee Benefit Plans (Details 11)	12 Months Ended
	Dec. 31, 2013
Equity based
Percentage of Total Portfolio Market Value
Equity Securities, Single Securities (less than 5%)	5.00%
Equity Securities, Minimum	30.00%
Equity Securities, Maximum	70.00%
Fixed income securities
Percentage of Total Portfolio Market Value
Equity Securities, Single Securities (less than 5%)	5.00%
Equity Securities, Minimum	20.00%
Equity Securities, Maximum	70.00%
Cash and equivalents
Percentage of Total Portfolio Market Value
Cash and equivalents, Single securities (less than 5%)	5.00%
Cash and equivalents, Minimum	1.00%
Cash and equivalents, Maximum	5.00%
Alternative investments
Percentage of Total Portfolio Market Value
Alternative Investments, Single securities (less than 5%)	5.00%
Alternative Investments, Minimum	0.00%
Alternative Investments, Maximum	20.00%