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Subsequent Events - Additional Information (Detail) (USD $)
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3 Months Ended | 1 Months Ended | 0 Months Ended | 1 Months Ended | 3 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended | 1 Months Ended | ||||||
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Mar. 31, 2014
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Mar. 31, 2013
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Mar. 31, 2014
Minimum [Member]
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Mar. 31, 2014
Maximum [Member]
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Apr. 30, 2014
Subsequent Event [Member]
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Apr. 23, 2014
Subsequent Event [Member]
Temporary Equity [Member]
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Apr. 29, 2014
Subsequent Event [Member]
$425 million Term Loan C [Member]
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Apr. 24, 2014
Subsequent Event [Member]
$425 million Term Loan C [Member]
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Apr. 30, 2014
Subsequent Event [Member]
$425 million Term Loan C [Member]
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Mar. 31, 2014
May 2019 [Member]
Senior secured notes due 2019 [Member]
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May 07, 2014
May 2019 [Member]
Subsequent Event [Member]
Senior secured notes due 2019 [Member]
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Apr. 30, 2014
Time Based Options [Member]
Subsequent Event [Member]
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Apr. 23, 2014
IPO [Member]
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Apr. 23, 2014
IPO [Member]
Subsequent Event [Member]
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Apr. 25, 2014
Underwriters Overallotment Option [Member]
Subsequent Event [Member]
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| Subsequent Event [Line Items] | |||||||||||||||
| Shares issued | 39,200,000 | 5,880,000 | |||||||||||||
| Initial public offer, price per share | $ 16.00 | ||||||||||||||
| Net proceeds from initial public offer | $ 677,000,000 | ||||||||||||||
| Early repayment of senior debt paid with IPO proceeds | 90,000,000 | 207,000,000 | 296,000,000 | 320,000,000 | |||||||||||
| Redemption amount of principal (debt instrument) | 108.50% | ||||||||||||||
| Debt redemption premium paid with IPO proceeds | 27,000,000 | ||||||||||||||
| Debt unpaid interest paid with IPO proceeds | 13,000,000 | ||||||||||||||
| Management fee paid with IPO proceeds | 21,000,000 | ||||||||||||||
| Common stock issued for redemption of preferred shares | 40,343,529 | ||||||||||||||
| Number of time based options granted to purchase common stock | 1,541,627 | ||||||||||||||
| Share based compensation arrangement by share based payment award options exercise price | $ 16.68 | ||||||||||||||
| Number of performance-based and time-based restricted stock units, granted | 2,298,478 | ||||||||||||||
| Stock compensation expense | 1,506,000 | 458,000 | 7,000,000 | ||||||||||||
| Percentage of future payments to existing share holders, US federal income tax cash savings | 85.00% | ||||||||||||||
| Recognized liability recorded against the Pre-IPO Tax Assets | 310,000,000 | 350,000,000 | |||||||||||||
| Valuation allowance | $ 72,000,000 | ||||||||||||||