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Fair Value Measurements and Derivative Instruments (Tables)
 9 Months Ended
Sep. 30, 2016
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement requires judgment and may affect its placement within the fair value hierarchy. The following tables show, by level within the fair value hierarchy, our financial assets and liabilities that are accounted for at fair value on a recurring basis at September 30, 2016 and December 31, 2015.
 
September 30, 2016
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets:
 

 
 

 
 

 
 

Investment securities
 

 
 

 
 

 
 

Money market funds / commercial paper
$
143,960

 
$
104,169

 
$
—

 
$
248,129

Equity securities
—

 
23,782

 
—

 
23,782

Commingled fixed income securities
1,575

 
22,769

 
—

 
24,344

Debt securities - U.S. and foreign governments, agencies and municipalities
93,515

 
19,396

 
—

 
112,911

Debt securities - corporate
—

 
82,149

 
—

 
82,149

Mortgage-backed / asset-backed securities
—

 
163,806

 
—

 
163,806

Derivatives
 
 
 
 
 

 


Foreign exchange contracts
—

 
3,508

 
—

 
3,508

Total assets
$
239,050

 
$
419,579

 
$
—

 
$
658,629

Liabilities:
 

 
 

 
 

 
 

Derivatives
 

 
 

 
 

 
 

Interest rate swap
$
—


$
(591
)

$
—


$
(591
)
Foreign exchange contracts
—

 
(1,515
)
 
—

 
(1,515
)
Total liabilities
$
—

 
$
(2,106
)
 
$
—

 
$
(2,106
)

 
December 31, 2015
 
Level 1
 
Level 2
 
Level 3
 
Total
Assets:
 

 
 

 
 

 
 

Investment securities
 

 
 

 
 

 
 

Money market funds / commercial paper
$
41,215

 
$
292,412

 
$
—

 
$
333,627

Equity securities
—

 
24,538

 
—

 
24,538

Commingled fixed income securities
—

 
22,571

 
—

 
22,571

Debt securities - U.S. and foreign governments, agencies and municipalities
102,235

 
12,566

 
—

 
114,801

Debt securities - corporate
—

 
62,884

 
—

 
62,884

Mortgage-backed / asset-backed securities
—

 
178,234

 
—

 
178,234

Derivatives
 

 
 

 
 

 


Foreign exchange contracts
—

 
1,716

 
—

 
1,716

Total assets
$
143,450

 
$
594,921

 
$
—

 
$
738,371

Liabilities:
 

 
 

 
 

 
 

Derivatives
 

 
 

 
 

 
 

Foreign exchange contracts
$
—

 
$
(5,387
)
 
$
—

 
$
(5,387
)
Total liabilities
$
—

 
$
(5,387
)
 
$
—

 
$
(5,387
)
Schedule of Available-for-sale Securities Reconciliation
Available-for-sale securities at September 30, 2016 and December 31, 2015 consisted of the following:
 
September 30, 2016
 
Amortized cost
 
Gross unrealized gains
 
Gross unrealized losses
 
Estimated fair value
U.S. and foreign governments, agencies and municipalities
$
109,027

 
$
4,145

 
$
(261
)
 
$
112,911

Corporate notes and bonds
79,264

 
2,982

 
(97
)
 
82,149

Commingled fixed income securities
1,559

 
16

 
—

 
1,575

Mortgage-backed / asset-backed securities
161,131

 
3,378

 
(703
)
 
163,806

Total
$
350,981

 
$
10,521

 
$
(1,061
)
 
$
360,441

 
December 31, 2015
 
Amortized cost
 
Gross unrealized gains
 
Gross unrealized losses
 
Estimated fair value
U.S. and foreign governments, agencies and municipalities
$
114,265

 
$
1,804

 
$
(1,268
)
 
$
114,801

Corporate notes and bonds
63,140

 
823

 
(1,079
)
 
62,884

Mortgage-backed / asset-backed securities
177,821

 
1,901

 
(1,488
)
 
178,234

Total
$
355,226

 
$
4,528

 
$
(3,835
)
 
$
355,919
Available-for-sale Securities
Scheduled maturities of available-for-sale securities at September 30, 2016 were as follows:
 
Amortized cost
 
Estimated fair value
Within 1 year
$
28,111

 
$
28,208

After 1 year through 5 years
120,611

 
122,284

After 5 years through 10 years
56,375

 
58,585

After 10 years
145,884

 
151,364

Total
$
350,981

 
$
360,441
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value
The fair value of derivative instruments at September 30, 2016 and December 31, 2015 was as follows:
Designation of Derivatives
 
Balance Sheet Location
 
September 30,
2016
 
December 31,
2015
Derivatives designated as
hedging instruments
 
 
 
 

 
 

Foreign exchange contracts
 
Other current assets and prepayments
 
$
247

 
$
217

 
 
Accounts payable and accrued liabilities
 
(573
)
 
(208
)
 
 
 
 
 
 
 
Interest rate swap
 
Other non-current liabilities
 
(591
)
 
—

 
 
 
 
 
 
 
Derivatives not designated as
hedging instruments
 
 
 
 

 
 

Foreign exchange contracts
 
Other current assets and prepayments
 
3,261

 
1,499

 
 
Accounts payable and accrued liabilities
 
(942
)
 
(5,179
)
 
 
 
 
 
 
 
 
 
Total derivative assets
 
$
3,508

 
$
1,716

 
 
Total derivative liabilities
 
(2,106
)
 
(5,387
)
 
 
Total net derivative asset (liabilities)
 
$
1,402

 
$
(3,671
)
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location
The following represents the results of cash flow hedging relationships for the three and nine months ended September 30, 2016 and 2015:
 
 
Three Months Ended September 30,
 
 
Derivative Gain (Loss)
Recognized in AOCL
(Effective Portion)
 
Location of Gain (Loss)
(Effective Portion)
 
Gain (Loss) Reclassified
from AOCL to Earnings
(Effective Portion)
Derivative Instrument
 
2016
 
2015
 
 
2016
 
2015
Foreign exchange contracts
 
$
(158
)
 
$
(140
)
 
Revenue
 
$
(443
)
 
211

 
 
 

 
 

 
Cost of sales
 
301

 
(41
)
Interest rate swap
 
(591
)
 
—

 
Interest Expense
 
—

 
—

 
 
$
(749
)
 
$
(140
)
 
 
 
$
(142
)
 
$
170

 
 
 
 
 
 
 
 
 
 
 
 
 
Nine Months Ended September 30,
 
 
Derivative Gain (Loss)
Recognized in AOCL
(Effective Portion)
 
Location of Gain (Loss)
(Effective Portion)
 
Gain (Loss) Reclassified
from AOCL to Earnings
(Effective Portion)
Derivative Instrument
 
2016
 
2015
 
 
2016
 
2015
Foreign exchange contracts
 
$
(114
)
 
$
614

 
Revenue
 
$
290

 
$
1,039

 
 
 

 
 

 
Cost of sales
 
(69
)
 
544

Interest rate swap
 
(591
)
 
—

 
Interest Expense
 
—

 
—

 
 
$
(705
)
 
$
614

 
 
 
$
221

 
$
1,583
Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location
The following represents the results of our non-designated derivative instruments for the three and nine months ended September 30, 2016 and 2015:
 
 
 
 
Three Months Ended September 30,
 
 
 
 
Derivative Gain (Loss) Recognized in Earnings
Derivatives Instrument
 
Location of Derivative Gain (Loss)
 
2016
 
2015
Foreign exchange contracts
 
Selling, general and administrative expense
 
$
1,719

 
$
2,138

 
 
 
 
 
 
 
 
 
 
 
Nine Months Ended September 30,
 
 
 
 
Derivative Gain (Loss) Recognized in Earnings
Derivatives Instrument
 
Location of Derivative Gain (Loss)
 
2016
 
2015
Foreign exchange contracts
 
Selling, general and administrative expense
 
$
322

 
$
(1,437
)
Fair Value, by Balance Sheet Grouping
The carrying value and estimated fair value of our debt at September 30, 2016 and December 31, 2015 were as follows:
 
September 30, 2016
 
December 31, 2015
Carrying value
$
3,367,056

 
$
2,950,668

Fair value
$
3,489,163

 
$
3,084,561