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Accounting Policies - Additional Information (Detail) (USD $)
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10 Months Ended | 12 Months Ended | 12 Months Ended | 10 Months Ended | 12 Months Ended | 10 Months Ended | |||||||||
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Oct. 31, 2013
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2013
Deferred Tax Assets Net from IPO [Member]
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Oct. 31, 2013
Deferred Tax Assets Net from IPO [Member]
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Jun. 30, 2013
Cash Operating Bank Account [Member]
Financial_Institution
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Dec. 31, 2013
Cash and Cash Equivalents Bank Accounts [Member]
Financial_Institution
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Dec. 31, 2012
Cash and Cash Equivalents Bank Accounts [Member]
Financial_Institution
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Dec. 31, 2013
Minimum [Member]
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Dec. 31, 2012
Minimum [Member]
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Oct. 31, 2013
Minimum [Member]
Pre-IPO [Member]
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Dec. 31, 2013
Maximum [Member]
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Dec. 31, 2012
Maximum [Member]
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Oct. 31, 2013
Maximum [Member]
Pre-IPO [Member]
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| Accounting Policies [Line Items] | |||||||||||||||
| Number of financial institutions | 1 | 3 | 3 | ||||||||||||
| Description of cash sweep arrangement | Historically, other than for a 2-week period around MMC's March 31 fiscal year end, the Company had a receivable from MMC for the cash that was swept. When the sweep arrangement was not in effect, during the week before and the week after March 31, the Company's cash balances remained in the Company's bank accounts. | ||||||||||||||
| Sweep arrangement termination date | Jun. 30, 2013 | ||||||||||||||
| Property and equipment, estimated useful lives | 3 years | 7 years | |||||||||||||
| Impairment loss | $ 0 | $ 0 | $ 0 | ||||||||||||
| Interest due | 1 year | 1 year | 5 years | 5 years | |||||||||||
| Weighted average interest rate for notes receivable | 2.00% | 6.00% | |||||||||||||
| Term of the lease | 5 years | 10 years | |||||||||||||
| Deferred rent | 3,700,000 | 3,200,000 | |||||||||||||
| Advertising expense | 1,000,000 | 700,000 | 500,000 | ||||||||||||
| Income taxes effective tax rate | 43.50% | 43.50% | 43.50% | ||||||||||||
| Tax sharing agreement termination date | Oct. 31, 2013 | ||||||||||||||
| Allocable net deferred tax assets | (26,572,000) | 26,600,000 | 26,600,000 | ||||||||||||
| Income tax benefit realized, percentage | 50.00% | ||||||||||||||
| Uncertain tax positions | $ 0 | ||||||||||||||
| Restricted common stock vesting period | 3 years | 5 years | |||||||||||||