Fair value of financial instruments (Tables)

6 Months Ended

Jun. 30, 2016

Fair value of financial instruments

Schedule of recurring measurements of fair value hierarchy of financial assets and liabilities

	June 30, 2016
	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	154.2	$	—	$	—	$	154.2
Restricted cash		14.3		—		—		14.3
Derivative instruments asset		—		2.7		—		2.7
Total	$	168.5	$	2.7	$	—	$	171.2
Liabilities:
Derivative instruments liability	$	—	$	52.1	$	—	$	52.1
Total	$	—	$	52.1	$	—	$	52.1

	December 31, 2015
	Level 1		Level 2		Level 3		Total
Assets:
Cash and cash equivalents	$	72.4	$	—	$	—	$	72.4
Restricted cash		15.2		—		—		15.2
Derivative instruments asset		—		0.3		—		0.3
Total	$	87.6	$	0.3	$	—	$	87.9
Liabilities:
Derivative instruments liability	$	—	$	57.5	$	—	$	57.5
Total	$	—	$	57.5	$	—	$	57.5