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Defined Benefit Pension Plans Defined Benefit Pension Plans (Tables)
 12 Months Ended
Dec. 31, 2013
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
Schedule of Changes in Benefit Obligation and Fair Value of Plan Assets [Table Text Block]
The following tables summarize the benefit obligation, plan assets, funded status of the defined benefit plans, amounts recognized in the Consolidated Balance Sheets and amounts recognized in accumulated other comprehensive income at December 31, 2013 and 2012.
 
 
Year Ended December 31,
 
2013
 
2012
 
(in thousands)
Change in benefit obligation:
 
 
 
Benefit obligation at January 1,
$
101,766

 
$
72,601

Service cost
4,205

 
2,700

Interest cost
3,355

 
3,625

Actuarial (gain) loss
(6,160
)
 
24,492

Benefits paid
(5,369
)
 
(4,131
)
Foreign currency exchange rate changes
2,698

 
2,395

Other
2,167

 
84

Benefit obligation at December 31,
$
102,662

 
$
101,766

 
 
 
 
Change in plan assets:
 
 
 
Fair value of plan assets at January 1,
$
8,561

 
$
7,980

Actual return on plan assets
119

 
225

Company contributions
436

 
440

Benefits paid
(537
)
 
(227
)
Foreign currency exchange rate changes
(267
)
 
143

Other
3,368

 
—

Fair value of plan assets at December 31,
11,680

 
8,561

Ending balance at fair value (net pension plan benefit liability)
$
90,982

 
$
93,205
Schedule of Amounts Recognized in the Consolidated Balance Sheets [Table Text Block]
Amounts recognized on the Consolidated Balance Sheets consist of:

 
 
At December 31,
 
2013
 
2012
 
(in thousands)
Assets
 
 
 
Plan assets in other long-term assets
$
1,426

 
$
227

 
 
 
 
Liabilities
 
 
 
Current portion of pension plan liability in wages and benefits payable
3,721

 
2,899

Long-term portion of pension plan liability
88,687

 
90,533

 
 
 
 
Net pension plan benefit liability
$
90,982

 
$
93,205
Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]
Amounts in accumulated other comprehensive income (pre-tax) that have not yet been recognized as components of net periodic benefit costs consist of:
 
 
At December 31,
 
2013
 
2012
 
(in thousands)
Net actuarial loss
$
13,262

 
$
20,676

Net prior service cost
1,133

 
1,063

Amount included in accumulated other comprehensive income
$
14,395

 
$
21,739
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
Amounts recognized in OCI (pre-tax) are as follows:
 
 
Year Ended December 31,
 
2013
 
2012
 
2011
 
(in thousands)
Net actuarial (gain) loss
$
(5,881
)
 
$
24,492

 
$
(597
)
Settlement/curtailment loss
(325
)
 
(13
)
 
(25
)
Plan asset (gain) loss
516

 
108

 
(105
)
Amortization of net actuarial gain (loss)
(926
)
 
(161
)
 
85

Amortization of prior service cost
(70
)
 
(68
)
 
(74
)
Other
(658
)
 
—

 
(1
)
Other comprehensive (income) loss
$
(7,344
)
 
$
24,358

 
$
(717
)
Schedule of Net Periodic Pension Benefit Costs [Table Text Block]
Net periodic pension benefit costs for our plans include the following components:

 
Year Ended December 31,
 
2013
 
2012
 
2011
 
(in thousands)
Service cost
$
4,205

 
$
2,700

 
$
2,512

Interest cost
3,355

 
3,625

 
3,754

Expected return on plan assets
(635
)
 
(331
)
 
(322
)
Amortization of prior service costs
70

 
68

 
74

Amortization of actuarial net (gain) loss
926

 
161

 
(85
)
Settlements and other
(493
)
 
97

 
25

Net periodic benefit cost
$
7,428

 
$
6,320

 
$
5,958
Schedule of Assumptions Used [Table Text Block]
The significant actuarial weighted average assumptions used in determining the benefit obligations and net periodic benefit cost for our benefit plans are as follows:
 
 
At and For The Year Ended December 31,
 
2013
 
2012
 
2011
Actuarial assumptions used to determine benefit obligations at end of period:
 
 
 
 
 
Discount rate
3.76
%
 
3.36
%
 
5.51
%
Expected annual rate of compensation increase
3.33
%
 
3.41
%
 
3.38
%
Actuarial assumptions used to determine net periodic benefit cost for the period:
 
 
 
 
 
Discount rate
3.36
%
 
5.51
%
 
5.35
%
Expected rate of return on plan assets
3.63
%
 
4.08
%
 
4.00
%
Expected annual rate of compensation increase
3.41
%
 
3.38
%
 
3.35
%
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]
The total obligation and fair value of plan assets for plans with accumulated benefit obligations exceeding the fair value of plan assets are as follows:

 
 
At December 31,
2013
 
2012
 
(in thousands)
Projected benefit obligation
$
99,694

 
$
100,357

Accumulated benefit obligation
90,803

 
89,687

Fair value of plan assets
7,286

 
6,925
Fair values of the assets held by the postretirement benefits plans by asset category [Table Text Block]
The fair values of our plan investments by asset category as of December 31, 2013, and 2012 are as follows:

 
 
Total
 
Quoted Prices in Active Markets for Identical Assets
(Level 1)
 
Significant Unobservable Inputs
(Level 3)
 
(in thousands)
2013
 
 
 
 
 
Cash
$
846

 
$
846

 
$
—

Insurance funds
8,260

 
—

 
8,260

Other securities
2,574

 
—

 
2,574

Total fair value of plan assets
$
11,680

 
$
846

 
$
10,834

 
 
 
 
 
 
2012
 
 
 
 
 
Cash
$
903

 
$
903

 
$
—

Insurance funds
7,658

 
—

 
7,658

Total fair value of plan assets
$
8,561

 
$
903

 
$
7,658
Schedule of Expected Benefit Payments [Table Text Block]
Annual benefit payments, including amounts to be paid from our assets for unfunded plans, and reflecting expected future service, as appropriate, are expected to be paid as follows:

 
Year Ending December 31,
 
Estimated Annual Benefit Payments
 
 
 
 
(in thousands)
 
2014
 
$
4,521

 
2015
 
3,781

 
2016
 
4,093

 
2017
 
4,464

 
2018
 
4,394

 
2019 - 2023
 
26,825