Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Cash Flows

v2.4.1.9
Consolidated Statements of Cash Flows (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Cash flows provided by operating activities:      
Net income (loss) $ 16,832us-gaap_NetIncomeLossAllocatedToLimitedPartners $ (14,332)us-gaap_NetIncomeLossAllocatedToLimitedPartners $ (4,586)us-gaap_NetIncomeLossAllocatedToLimitedPartners
Adjustment to reconcile net income (loss) to net cash provided by operating activities:      
Depreciation 36,789us-gaap_DepreciationDepletionAndAmortization 11,346us-gaap_DepreciationDepletionAndAmortization 1,679us-gaap_DepreciationDepletionAndAmortization
Equity-based compensation 8,619us-gaap_ShareBasedCompensation 15,931us-gaap_ShareBasedCompensation  
Amortization of deferred financing costs 135us-gaap_AmortizationOfFinancingCosts    
Changes in assets and liabilities:      
Accounts receivable-affiliate (19,465)us-gaap_IncreaseDecreaseInDueFromAffiliatesCurrent (2,873)us-gaap_IncreaseDecreaseInDueFromAffiliatesCurrent (126)us-gaap_IncreaseDecreaseInDueFromAffiliatesCurrent
Prepaid expenses (518)us-gaap_IncreaseDecreaseInPrepaidExpense    
Accounts payable 738us-gaap_IncreaseDecreaseInAccountsPayable    
Accounts payable-affiliate 1,059us-gaap_IncreaseDecreaseInDueToAffiliates    
Accrued liabilities 4,698us-gaap_IncreaseDecreaseInAccruedLiabilities 541us-gaap_IncreaseDecreaseInAccruedLiabilities (119)us-gaap_IncreaseDecreaseInAccruedLiabilities
Net cash provided by operating activities 48,887us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations 10,613us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations (3,152)us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations
Cash flows used in investing activities:      
Additions to property and equipment (553,582)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (389,340)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment (115,267)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Change in working capital of affiliate related to property and equipment (40,277)am_PaymentsToAffiliatesRelatedToPropertyPlantAndEquipment    
Change in other assets (3,530)us-gaap_PaymentsToAcquireOtherProductiveAssets (8,581)us-gaap_PaymentsToAcquireOtherProductiveAssets  
Net cash used in investing activities (597,389)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations (397,921)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations (115,267)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations
Cash flows provided by financing activities:      
Deemed contribution from (distribution to) parent, net 29,764am_ContributionsFromDistributionsToParent 388,059am_ContributionsFromDistributionsToParent 118,446am_ContributionsFromDistributionsToParent
Net proceeds from initial public offering 1,087,224us-gaap_ProceedsFromIssuanceInitialPublicOffering    
Distribution to parent (332,500)us-gaap_PaymentsOfCapitalDistribution    
Borrowings on bank credit facility 510,000us-gaap_ProceedsFromLongTermLinesOfCredit    
Repayments on bank credit facility (510,000)us-gaap_RepaymentsOfLongTermLinesOfCredit    
Payments of deferred financing costs (4,871)us-gaap_PaymentsOfFinancingCosts    
Payments on capital lease obligations (923)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations (751)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations (27)us-gaap_RepaymentsOfLongTermCapitalLeaseObligations
Net cash provided by financing activities 778,694us-gaap_NetCashProvidedByUsedInFinancingActivities 387,308us-gaap_NetCashProvidedByUsedInFinancingActivities 118,419us-gaap_NetCashProvidedByUsedInFinancingActivities
Net decrease in cash and cash equivalents 230,192us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease    
Cash and cash equivalents, end of period 230,192us-gaap_CashAndCashEquivalentsAtCarryingValue    
Supplemental disclosure of cash flow information:      
Cash paid during the period for interest 4,485us-gaap_InterestPaid 146us-gaap_InterestPaid 8us-gaap_InterestPaid
Supplemental disclosure of noncash investing activities:      
Increase in accrued capital expenditures and accounts payable for property and equipment $ 46,327am_IncreaseDecreaseInCapitalExpendituresIncurredButNotYetPaid $ 9,003am_IncreaseDecreaseInCapitalExpendituresIncurredButNotYetPaid $ 27,721am_IncreaseDecreaseInCapitalExpendituresIncurredButNotYetPaid