Employee Benefit Plans (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Sep. 27, 2015	Sep. 27, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cumulative actuarial losses		$ 59.7
Deferred tax assets on cumulative actuarial losses		$ 23.0	$ 23.0
Change in projected benefit obligation
Balance at beginning of the year			158.9	$ 158.9	$ 126.3
Service cost				1.3	0.7	$ 0.5
Administration costs paid				(1.8)	(1.5)
Interest cost				4.0	5.9	5.4
Actuarial (gain) loss				(5.0)	32.6
Benefits paid				(3.8)	(5.1)
Settlement				(153.6)
Balance at end of year					158.9	126.3
Change in fair value of plan assets
Balance at beginning of the year			118.9	118.9	103.7
Actual (loss) gain on assets				(3.5)	21.1
Employer contributions				43.8	0.7
Administration costs paid				(1.8)	(1.5)
Benefits paid				(3.8)	(5.1)
Settlement				(153.6)
Fair value of plan assets at end of the year					118.9	103.7
Funded status at end of year				0.0	(40.0)
Amounts recognized in the consolidated balance sheet
Current liabilities					40.0
Amounts recognized in accumulated other comprehensive income
Net actuarial loss recognized				(58.9)	58.9
Information for pension plans with an accumulated benefit obligation in excess of plan assets
Projected benefit obligation					158.9
Accumulated benefit obligation					158.9
Fair value of plan assets					118.9
Components of net periodic benefit cost
Service cost-benefits earned				1.3	0.7	0.5
Interest costs on benefits obligation				4.0	5.9	5.4
Expected return on assets				(3.4)	(6.3)	(6.8)
Net actuarial loss amortization				1.1	1.2	1.0
Settlement charge				59.7	1.2	1.0
Net periodic benefit cost				$ 62.7	$ 1.5	$ 0.1
SERP
Change in projected benefit obligation
Benefits paid			(0.6)
Change in fair value of plan assets
Employer contributions	$ 43.2
Benefits paid			$ (0.6)