Period of time after which participants vest in employer contributions.

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- Definition

Employee Stock Ownership Plan (ESOP), Unallocated Shares Released And Allocated To Participants

+ References

No definition available.

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- Definition

Maximum Employer Contribution As A Percent of Employees Compensation

+ References

No definition available.

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- References

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- 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.

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- Definition

Amount of discretionary contributions made by an employer to a defined contribution plan.

+ References

No definition available.

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

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- Definition

Maximum amount the employee may contribute to a defined contribution plan.

+ References

No definition available.

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

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- Definition

The amount of plan compensation cost recognized during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 40
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

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- References

No definition available.

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Benefit Plans - Incentive Savings Plan and Employee Stock Ownership Plan (Details) - USD ($)				12 Months Ended
	Jan. 01, 2015	Dec. 20, 2013	Jan. 01, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Incentive Savings Plan
Employee maximum contribution of pre-tax base salary, percentage				30.00%
Employee maximum contribution of pre-tax base salary limit				$ 18,000
Defined Contribution Plan Disclosure [Line Items]
Maximum percentage of the participating employees' contributions matched by the employer			50.00%
Maximum employer matching contribution as a percentage of participating employees' compensation			6.00%
Maximum employer contribution as a percent of employees compensation	4.50%		3.00%
Matching contributions				$ 3,900,000	$ 2,200,000
Employee vesting in employer contributions after period of time				1 year
Employee Stock Ownership Plan
Shares allocated to participants		967,013
Compensation expense related to ESOP						$ 11,200,000
Employee contributions up to 3%
Defined Contribution Plan Disclosure [Line Items]
Maximum percentage of the participating employees' contributions matched by the employer	100.00%
Maximum employer matching contribution as a percentage of participating employees' compensation	3.00%
Employee contributions between 3% and 6%
Defined Contribution Plan Disclosure [Line Items]
Maximum percentage of the participating employees' contributions matched by the employer	50.00%
Employee contributions between 3% and 6% \| Minimum
Defined Contribution Plan Disclosure [Line Items]
Maximum employer matching contribution as a percentage of participating employees' compensation	3.00%
Employee contributions between 3% and 6% \| Maximum
Defined Contribution Plan Disclosure [Line Items]
Maximum employer matching contribution as a percentage of participating employees' compensation	6.00%