XML 118 R66.htm IDEA: XBRL DOCUMENT v2.4.1.9
Intangible Assets Schedule of Intangible Assets and Excess Reorganization Value (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Mar. 15, 2013
Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]      
Excess reorganization value   $ 6.8us-gaap_Goodwill  
Average useful life of finite-lived intangible assets 15 years    
Contract-Based Intangible Assets [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets     54.6us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractBasedIntangibleAssetsMember
Successor [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets 119.2us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
  123.5us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
Accumulated amortization (4.3)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
   
Excess reorganization value 137.2us-gaap_Goodwill
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
  137.2us-gaap_Goodwill
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
Successor [Member] | Contract-Based Intangible Assets [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets 51.4us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractBasedIntangibleAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
  54.6us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractBasedIntangibleAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
Accumulated amortization (3.2)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_ContractBasedIntangibleAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
   
Successor [Member] | Customer-Related Intangible Assets [Member]      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets 67.8us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelatedIntangibleAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
  68.9us-gaap_IntangibleAssetsNetExcludingGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelatedIntangibleAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember
Accumulated amortization (1.1)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_CustomerRelatedIntangibleAssetsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_SuccessorMember