Pension and Severance Benefits - Net Benefit Costs (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule of Defined Benefit and Defined Contribution Plans [Line Items]
Defined contribution plans - Domestic Plan	$ 5,138	$ 4,803	$ 8,544
Total pension and severance expense - Domestic Plans	5,693cqb_PensionExpenseDomestic	5,361cqb_PensionExpenseDomestic	8,890cqb_PensionExpenseDomestic
Defined contribution plans - Foreign Plans	438	461	466
Total pension and severance expense - Foreign Plans	12,806cqb_PensionExpenseForeign	12,575cqb_PensionExpenseForeign	11,818cqb_PensionExpenseForeign
Domestic Plans
Schedule of Defined Benefit and Defined Contribution Plans [Line Items]
Service cost	464	465	363
Interest on projected benefit obligation	993	892	1,086
Expected return on plan assets	(1,313)	(1,294)	(1,477)
Recognized actuarial loss	411	495	374
Defined benefit and severance plans	555	558	346
Foreign Plans
Schedule of Defined Benefit and Defined Contribution Plans [Line Items]
Service cost	6,956	6,992	6,783
Interest on projected benefit obligation	4,661	4,293	3,903
Expected return on plan assets	(27)	(33)	(32)
Recognized actuarial loss	650	734	570
Amortization of prior service cost	128	128	128
Defined benefit and severance plans	$ 12,368	$ 12,114	$ 11,352

Defined Contribution Plan, Cost Recognized, Domestic

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Defined Contribution Plan, Cost Recognized, Foreign

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- Definition

Pension Expense, Domestic

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- Definition

Pension Expense, Foreign

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- Definition

The amount of gains or losses recognized in net periodic benefit cost.

+ References

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- Definition

The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.

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- Definition

An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 30

-Glossary Expected Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512136

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 60

-Glossary Expected Return on Plan Assets

-URI http://asc.fasb.org/extlink&oid=6512171

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (h)(3)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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- Definition

The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ 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 (h)(1)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Service Cost (Component of Net Periodic Pension Cost)

-URI http://asc.fasb.org/extlink&oid=6525008

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

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