Subsequent Events (Details) - Subsequent Event - KBC £ / shares in Units, £ in Millions, $ in Millions			3 Months Ended
	Jan. 12, 2016 USD ($)	Jan. 11, 2016 USD ($)	Mar. 31, 2016 GBP (£) £ / shares	Mar. 31, 2016 USD ($)	Jan. 28, 2016 USD ($)
Acquisition
Amount placed in escrow		$ 115.1
Amount placed in escrow, consideration payable		91.0
Amount placed in escrow, foreign exchange fluctuations		23.1
Amount placed in escrow, costs that may become payable under the Bridge Credit Agreement		1.0
Bridge Credit Agreement
Acquisition
Principal amount	$ 140.0
Maturity term	364 days
Amount outstanding					$ 0.0
Fees paid to secure credit agreement		$ 1.1
Forecast
Acquisition
Price per share (in GBP per share) | £ / shares			£ 1.85
Consideration payable | £			£ 158
Amount of consideration funded by cash				$ 91.0