Related-Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Related Party Transactions
Revenue from related party	$ 142.2	$ 227.5	$ 190.6
Expenses from business transactions with unconsolidated affiliates			0.1
Accounts receivable from affiliated entities	24.1	80.7
Accounts payable to affiliated entities		40.0
Long-term payables with affiliated entities	0.8	0.8
James R Crane | Crane Capital Group Inc
Related Party Transactions
Accounts payable to affiliated entities	1.1	3.9
Amount paid to related party for services provided	33.7	89.1	$ 39.4
Management
Related Party Transactions
Premium payments to date related to life insurance policies	6.6
Cash surrender value included in other long-term assets	$ 6.0	$ 6.0