Components of Working Capital - Accounts Receivable, Net Table (Details) - USD ($) $ in Thousands		Mar. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Trade receivables, net		$ 130,559	$ 143,341
Other receivables, net		49,042	49,772
Total accounts receivable, net	[1]	$ 179,601	$ 193,113	[2]

[1] Accounts receivable, net includes amounts receivable from affiliates (as defined in Note 1) of $53.6 million and $42.5 million as of March 31, 2016, and December 31, 2015, respectively. Accounts receivable, net as of March 31, 2016, and December 31, 2015, also includes an insurance claim receivable related to an incident at the DBM complex. See Note 1.

[2] Financial information has been recast to include the financial position and results attributable to the Springfield system. See Note 1 and Note 2.