Financial Instruments and Fair Value Measurement - Interest Rate Risk (Details) $ in Millions	Mar. 31, 2016 USD ($)
Interest Swap Position One
Derivative [Line Items]
Notional amount of derivative	$ 560.0
Weighted Average Interest Rate	0.75%
Interest Swap Position Two
Derivative [Line Items]
Notional amount of derivative	$ 450.0
Weighted Average Interest Rate	1.00%
Interest Swap Position Three
Derivative [Line Items]
Notional amount of derivative	$ 300.0
Weighted Average Interest Rate	1.03%
Interest Swap Position Four
Derivative [Line Items]
Notional amount of derivative	$ 150.0
Weighted Average Interest Rate	1.40%