Commitments and Contingencies (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Contractual obligation	$ 37.9	$ 85.4
Letters of credit, oustanding amount	2.5	2.5
Unconsolidated joint venture debt, pro rata portion, if not paid by joint venture	$ 160.1	$ 165.7

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

No definition available.

Name:	us-gaap_ContractualObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant