Annual report pursuant to Section 13 and 15(d)

Retirement Plan (Details)

v2.4.0.8
Retirement Plan (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Retirement Plan [Abstract]      
Defined Contribution Plan, Cost Recognized $ 9,422 $ 6,771 $ 5,119