Related Party Transactions (Details) - Polsinelli [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Related Party Transaction [Line Items]
Related Party Transaction, Amounts of Transaction	$ 1.7	$ 2.1	$ 0.7
Accounts Payable, Related Parties	$ 0.4	$ 0.4