Employee Benefit Plans (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Savings plan pursuant to section 401(k) of the Internal Revenue Code
Participants' contribution limit as a percentage of their salary	15.00%
Expenses incurred as associated with the plan	$ 0.1	$ 0.1	$ 0.2
ESOP
Number of consecutive months of service to be fulfilled by employees for eligibility to be covered under the plan		12 months
Minimum age of employees for eligibility to be covered under the plan		21 years
Minimum hours of work required by the employees to be covered under the plan per year		1000 hours
Contributions to the plan	$ 0	$ 0	$ 0
Company's common stock held under the plan (in shares)	0