Defined Benefit Pension Plan and Postretirement Benefits - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013 OptionPlan
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Number of non-contributory defined benefit plans	3
Company's maximum expected cash contributions to the Pension Plans in the next fiscal year	$ 0.1
Maximum expected actuarial gain to be recognize as a component of periodic benefit cost next fiscal year	$ 0.1
Percentage of employer's contribution based on participants contribution	50.00%
Maximum [Member]
Pension Plans, Postretirement and Other Employee Benefits [Line Items]
Percentage of employer's contribution based on participants compensation	2.00%

The actuarial gain expected to be recognized as a component of the periodic benefit cost during the next fiscal year.

No definition available.

Name:	syke_ExpectedActuarialGainToBeRecognizeAsComponentOfPeriodicBenefitCostNextFiscalYear
Namespace Prefix:	syke_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of non-contributory defined benefit plans.

+ References

No definition available.

+ Details

Name:	syke_NumberOfNonContributoryDefinedBenefitPlans
Namespace Prefix:	syke_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	syke_PensionPlansPostretirementAndOtherEmployeeBenefitsLineItems
Namespace Prefix:	syke_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

+ Details

Name:	us-gaap_DefinedBenefitPlansEstimatedFutureEmployerContributionsInNextFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration