Commitments and Contingencies - Additional Information (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended		12 Months Ended
	May 31, 2011 Plaintiff	Jun. 30, 2012 Defendant	Jun. 30, 2014	Dec. 31, 2011 Guarantees	Jun. 30, 2014 Guarantees	Oct. 31, 2011 Letter of Credit
Loss Contingencies [Line Items]
Credit facility, Maximum borrowing capacity			$ 50.0			$ 4.0
Guarantee liability accrual				4.0
Guarantee liability in other operating expense				(4.0)
Guarantee liability accrued					4.0
Settlement amount	$ 8.6
Number of plaintiffs	3
Number of defendants		2