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Debt - Prior to the IPO - Working Capital Facility (Details) - USD ($) $ in Millions	Jul. 31, 2013	Dec. 17, 2012	Dec. 31, 2013	Dec. 31, 2012
Working Capital Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 80.0	$ 70.0		$ 150.0
Working capital credit facility outstanding portion paid by affiliate			$ 29.0
Nonutilization fee		0.50%
Commitment fee percentage	0.50%
Working Capital Facility | Eurodollar | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	3.00%	3.00%
Working Capital Facility | Eurodollar | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	3.25%	3.75%
Working Capital Facility | Base Rate | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.00%	2.00%
Working Capital Facility | Base Rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.25%	2.75%
Working Capital Facility | Cost of Funds Rate | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.50%
Working Capital Facility | Cost of Funds Rate | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.75%
Letters of Credit Outstanding More than Two Business Days | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.00%

X

- Definition

Line of Credit Facility, Fair Value of Amount Outstanding, Portion Paid By Affiliate

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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X

- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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X

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Details

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- Details

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