Defined contribution plan, employer matching contribution, annual maximum amount of contribution per employee.

No definition available.

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Data Type:	xbrli:monetaryItemType
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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.

+ References

No definition available.

+ Details

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- Definition

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

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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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.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
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- Definition

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

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
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- Details

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- Details

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- Details

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EMPLOYEE BENEFIT PLAN - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Foreign Defined Contribution Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to 401(k) plan	$ 2,600,000	$ 2,100,000	$ 1,900,000
Defined Contribution Plan One [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution to 401(k) defined contribution retirement savings plan by employer	50.00%
Employer 401(k) maximum annual matching contribution to each employee	$ 2,000
Defined Contribution Plan One [Member] \| Domestic Defined Contribution Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to 401(k) plan	$ 5,900,000	4,800,000	$ 3,600,000
Defined Contribution Plan Two [Member] \| Employer Match One [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution to 401(k) defined contribution retirement savings plan by employer	100.00%
Percentage of contribution to 401(k) defined contribution retirement savings plan by each employee	3.00%
Defined Contribution Plan Two [Member] \| Employer Match Two [Member]
Defined Benefit Plan Disclosure [Line Items]
Percentage of contribution to 401(k) defined contribution retirement savings plan by employer	50.00%
Percentage of contribution to 401(k) defined contribution retirement savings plan by each employee	2.00%
Defined Contribution Plan Two [Member] \| Domestic Defined Contribution Plan
Defined Benefit Plan Disclosure [Line Items]
Employer contributions to 401(k) plan	$ 3,300,000	$ 900,000