Commitments and Contingencies - Debt (Details) (USD $)	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure
Stated or notional amounts included in the indemnification clauses	$ 0
Change of control provisions in debt covenants
Number of months considered to determine requirement of prepayment of debts	24 months
Line of Credit | Minimum
Change of control provisions in debt covenants
Debt instrument covenant, minimum percentage of ownership by a person	33.00%
Debt Securities | Minimum
Change of control provisions in debt covenants
Debt instrument covenant, minimum percentage of ownership by a person	50.00%