|
Related-Party Transactions (Details) (USD $)
In Thousands, unless otherwise specified |
11 Months Ended | 12 Months Ended | 11 Months Ended | 12 Months Ended | 11 Months Ended | 1 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 31, 2011
|
Mar. 31, 2013
|
Mar. 31, 2012
|
Mar. 31, 2011
Successor [Member]
|
Mar. 31, 2013
Successor [Member]
|
Mar. 31, 2012
Successor [Member]
|
Mar. 31, 2011
Successor [Member]
Prepaid Expenses [Member]
|
Mar. 31, 2011
Successor [Member]
Debt Issuance Costs, Net [Member]
|
Mar. 31, 2011
Successor [Member]
Obligations to Related Parties [Member]
|
Mar. 31, 2011
Successor [Member]
Miscellaneous Expense [Member]
|
Mar. 31, 2011
Successor [Member]
Marketing, General and Adminstrative and Engineering Expense [Member]
|
Apr. 30, 2010
Predecessor [Member]
|
Apr. 30, 2010
Predecessor [Member]
Obligations to Related Parties [Member]
|
Apr. 30, 2010
Predecessor [Member]
Marketing, General and Adminstrative and Engineering Expense [Member]
|
|
| Related Party Transaction [Line Items] | ||||||||||||||
| Obligations due to settle the CHS Transactions | $ 3,239 | $ 3,528 | ||||||||||||
| Payments to settle the CHS transactions | 2,962 | 289 | 685 | 314,410 | 289 | 685 | 0 | |||||||
| Management fees including termination fee paid in connection with IPO | 8,569 | 8,158 | 620 | 2,605 | 3,022 | 398 | 1,924 | 4,795 | 4,716 | 79 | ||||
| Fees for the termination of management agreements | $ 7,400 | |||||||||||||