Document_and_Entity_Informatio
Document and Entity Information (USD $) | 12 Months Ended | ||
Dec. 31, 2013 | Feb. 10, 2014 | Jun. 30, 2013 | |
Document And Entity Information [Abstract] | ' | ' | ' |
Document Type | '10-K | ' | ' |
Amendment Flag | 'false | ' | ' |
Document Period End Date | 31-Dec-13 | ' | ' |
Document Fiscal Year Focus | '2013 | ' | ' |
Document Fiscal Period Focus | 'FY | ' | ' |
Entity Registrant Name | 'ADTRAN INC | ' | ' |
Entity Central Index Key | '0000926282 | ' | ' |
Current Fiscal Year End Date | '--12-31 | ' | ' |
Entity Well-known Seasoned Issuer | 'Yes | ' | ' |
Entity Current Reporting Status | 'Yes | ' | ' |
Entity Voluntary Filers | 'No | ' | ' |
Entity Filer Category | 'Large Accelerated Filer | ' | ' |
Entity Common Stock, Shares Outstanding | ' | 56,643,368 | ' |
Entity Public Float | ' | ' | $1,424,546,508 |
Consolidated_Balance_Sheets
Consolidated Balance Sheets (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Current Assets | ' | ' |
Cash and cash equivalents | $58,298 | $68,457 |
Short-term investments | 105,760 | 160,481 |
Accounts receivable, less allowance for doubtful accounts of $130 and $6 at December 31, 2013 and 2012, respectively | 85,814 | 79,675 |
Other receivables | 18,249 | 16,253 |
Inventory, net | 90,111 | 101,377 |
Prepaid expenses | 4,325 | 4,148 |
Deferred tax assets, net | 17,083 | 13,055 |
Total Current Assets | 379,640 | 443,446 |
Property, plant and equipment, net | 76,739 | 80,246 |
Deferred tax assets, net | 9,622 | 10,261 |
Goodwill | 3,492 | 3,492 |
Other assets | 11,180 | 13,482 |
Long-term investments | 309,225 | 332,729 |
Total Assets | 789,898 | 883,656 |
Current Liabilities | ' | ' |
Accounts payable | 48,282 | 42,173 |
Unearned revenue | 22,205 | 35,326 |
Accrued expenses | 12,776 | 11,735 |
Accrued wages and benefits | 14,040 | 15,022 |
Income tax payable, net | 5,002 | 1,211 |
Total Current Liabilities | 102,305 | 105,467 |
Non-current unearned revenue | 14,643 | 22,377 |
Other non-current liabilities | 22,144 | 17,406 |
Bonds payable | 46,200 | 46,000 |
Total Liabilities | 185,292 | 191,250 |
Commitments and contingencies (see Note 13) | ' | ' |
Stockholders' Equity | ' | ' |
Common stock, par value $0.01 per share; 200,000 shares authorized; 79,652 shares issued and 56,918 shares outstanding at December 31, 2013 and 79,652 shares issued and 62,310 shares outstanding at December 31, 2012 | 797 | 797 |
Additional paid-in capital | 233,511 | 224,517 |
Accumulated other comprehensive income | 10,753 | 11,268 |
Retained earnings | 884,451 | 861,465 |
Less treasury stock at cost: 22,734 and 17,342 shares at December 31, 2013 and 2012, respectively | -524,906 | -405,641 |
Total Stockholders' Equity | 604,606 | 692,406 |
Total Liabilities and Stockholders' Equity | $789,898 | $883,656 |
Consolidated_Balance_Sheets_Pa
Consolidated Balance Sheets (Parenthetical) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, except Per Share data, unless otherwise specified | ||
Statement Of Financial Position [Abstract] | ' | ' |
Allowance for doubtful accounts | $130 | $6 |
Common stock, par value | $0.01 | $0.01 |
Common stock, shares authorized | 200,000 | 200,000 |
Common stock, shares issued | 79,652 | 79,652 |
Common stock, shares outstanding | 56,918 | 62,310 |
Treasury stock, shares | 22,734 | 17,342 |
Consolidated_Statements_of_Inc
Consolidated Statements of Income (USD $) | 12 Months Ended | ||
In Thousands, except Per Share data, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Income Statement [Abstract] | ' | ' | ' |
Sales | $641,744 | $620,614 | $717,229 |
Cost of sales | 332,858 | 303,971 | 302,911 |
Gross Profit | 308,886 | 316,643 | 414,318 |
Selling, general and administrative expenses | 129,366 | 134,523 | 124,879 |
Research and development expenses | 131,055 | 125,951 | 100,301 |
Operating Income | 48,465 | 56,169 | 189,138 |
Interest and dividend income | 7,012 | 7,657 | 7,642 |
Interest expense | -2,325 | -2,347 | -2,398 |
Net realized investment gain | 8,614 | 9,550 | 12,454 |
Other income (expense), net | -911 | 183 | -694 |
Gain on bargain purchase of a business | ' | 1,753 | ' |
Income before provision for income taxes | 60,855 | 72,965 | 206,142 |
Provision for income taxes | -15,061 | -25,702 | -67,565 |
Net Income | $45,794 | $47,263 | $138,577 |
Weighted average shares outstanding - basic | 59,001 | 63,259 | 64,145 |
Weighted average shares outstanding - diluted | 59,424 | 63,774 | 65,416 |
Earnings per common share - basic | $0.78 | $0.75 | $2.16 |
Earnings per common share - diluted | $0.77 | $0.74 | $2.12 |
Consolidated_Statements_of_Com
Consolidated Statements of Comprehensive Income (USD $) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Statement Of Income And Comprehensive Income [Abstract] | ' | ' | ' |
Net Income | $45,794 | $47,263 | $138,577 |
Other Comprehensive Loss, net of tax: | ' | ' | ' |
Net unrealized gains (losses) on available-for-sale securities | 629 | -52 | -13,692 |
Defined benefit plan adjustments | 1,061 | -1,952 | ' |
Foreign currency translation | -2,205 | 170 | -154 |
Other Comprehensive Income (Loss), net of tax | -515 | -1,834 | -13,846 |
Comprehensive Income, net of tax | $45,279 | $45,429 | $124,731 |
Consolidated_Statements_of_Cha
Consolidated Statements of Changes in Stockholders' Equity (USD $) | Total | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Treasury Stock [Member] | Accumulated Other Comprehensive Income [Member] |
In Thousands | ||||||
Beginning Balance at Dec. 31, 2010 | $572,322 | $797 | $193,866 | $731,962 | ($381,251) | $26,948 |
Beginning Balance, Shares at Dec. 31, 2010 | ' | 79,652 | ' | ' | ' | ' |
Net Income | 138,577 | ' | ' | 138,577 | ' | ' |
Other comprehensive loss, net of tax | -13,846 | ' | ' | ' | ' | -13,846 |
Dividend payments | -23,124 | ' | ' | -23,124 | ' | ' |
Dividends accrued for unvested restricted stock units | -52 | ' | ' | -52 | ' | ' |
Stock options exercised | 34,125 | ' | ' | -6,345 | 40,470 | ' |
Restricted stock units vested | ' | ' | ' | -812 | 812 | ' |
Purchase of treasury stock | -35,565 | ' | ' | ' | -35,565 | ' |
Income tax benefit from exercise of stock options | 10,525 | ' | 10,525 | ' | ' | ' |
Stock-based compensation expense | 9,169 | ' | 9,169 | ' | ' | ' |
Ending Balance at Dec. 31, 2011 | 692,131 | 797 | 213,560 | 840,206 | -375,534 | 13,102 |
Ending Balance, Shares at Dec. 31, 2011 | ' | 79,652 | ' | ' | ' | ' |
Net Income | 47,263 | ' | ' | 47,263 | ' | ' |
Other comprehensive loss, net of tax | -1,834 | ' | ' | ' | ' | -1,834 |
Dividend payments | -22,813 | ' | ' | -22,813 | ' | ' |
Dividends accrued for unvested restricted stock units | 15 | ' | ' | 15 | ' | ' |
Stock options exercised | 6,049 | ' | ' | -2,659 | 8,708 | ' |
Restricted stock units vested | -212 | ' | -212 | -547 | 547 | ' |
Purchase of treasury stock | -39,362 | ' | ' | ' | -39,362 | ' |
Income tax benefit from exercise of stock options | 1,905 | ' | 1,905 | ' | ' | ' |
Stock-based compensation expense | 9,264 | ' | 9,264 | ' | ' | ' |
Ending Balance at Dec. 31, 2012 | 692,406 | 797 | 224,517 | 861,465 | -405,641 | 11,268 |
Ending Balance, Shares at Dec. 31, 2012 | ' | 79,652 | ' | ' | ' | ' |
Net Income | 45,794 | ' | ' | 45,794 | ' | ' |
Other comprehensive loss, net of tax | -515 | ' | ' | ' | ' | -515 |
Dividend payments | -21,412 | ' | ' | -21,412 | ' | ' |
Dividends accrued for unvested restricted stock units | -23 | ' | ' | -23 | ' | ' |
Stock options exercised | 3,629 | ' | ' | -762 | 4,391 | ' |
Restricted stock units vested | -248 | ' | -248 | -611 | 611 | ' |
Purchase of treasury stock | -124,267 | ' | ' | ' | -124,267 | ' |
Income tax benefit from exercise of stock options | 169 | ' | 169 | ' | ' | ' |
Stock-based compensation expense | 9,073 | ' | 9,073 | ' | ' | ' |
Ending Balance at Dec. 31, 2013 | $604,606 | $797 | $233,511 | $884,451 | ($524,906) | $10,753 |
Ending Balance, Shares at Dec. 31, 2013 | ' | 79,652 | ' | ' | ' | ' |
Consolidated_Statements_of_Cha1
Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Purchase of treasury stock, shares | 5,608 | 1,786 | 1,112 |
Treasury stock, shares issued | 217 | 393 | 1,813 |
Treasury stock, received | 0 | 0 | 7 |
Treasury Stock [Member] | ' | ' | ' |
Purchase of treasury stock, shares | 5,608 | 1,786 | 1,112 |
Consolidated_Statements_of_Cas
Consolidated Statements of Cash Flows (USD $) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Cash flows from operating activities | ' | ' | ' |
Net Income | $45,794 | $47,263 | $138,577 |
Adjustments to reconcile net income to net cash provided by operating activities: | ' | ' | ' |
Depreciation and amortization | 14,628 | 14,079 | 11,499 |
Amortization of net premium on available-for-sale investments | 5,956 | 8,257 | 6,617 |
Net realized gain on long-term investments | -8,614 | -9,550 | -12,454 |
Net (gain) loss on disposal of property, plant and equipment | 3 | -214 | 6 |
Gain on bargain purchase of a business | ' | -1,753 | ' |
Stock-based compensation expense | 9,073 | 9,264 | 9,169 |
Deferred income taxes | -4,058 | -3,785 | 575 |
Tax benefit from stock option exercises | 169 | 1,905 | 10,525 |
Excess tax benefits from stock-based compensation arrangements | -158 | -1,456 | -9,373 |
Change in operating assets and liabilities: | ' | ' | ' |
Accounts receivable, net | -5,541 | -2,847 | -4,939 |
Other receivables | -1,549 | 2,977 | -5,781 |
Income tax receivable, net | ' | ' | 2,741 |
Inventory | 10,265 | 8,333 | -12,734 |
Prepaid expenses and other assets | -11 | -1,045 | 522 |
Accounts payable | 5,206 | 7,510 | 6,044 |
Accrued expenses and other liabilities | -15,146 | 8,895 | 6,309 |
Income taxes payable, net | 3,747 | -1,960 | 3,169 |
Net cash provided by operating activities | 59,764 | 85,873 | 150,472 |
Cash flows from investing activities | ' | ' | ' |
Purchases of property, plant and equipment | -8,173 | -12,320 | -11,778 |
Proceeds from disposals of property, plant and equipment | ' | 266 | ' |
Proceeds from sales and maturities of available-for-sale investments | 343,567 | 282,039 | 466,243 |
Purchases of available-for-sale investments | -261,625 | -282,740 | -554,629 |
Acquisition of business, net of cash acquired | ' | 7,496 | -22,661 |
Net cash provided by (used in) investing activities | 73,769 | -5,259 | -122,825 |
Cash flows from financing activities | ' | ' | ' |
Proceeds from stock option exercises | 3,629 | 6,049 | 34,125 |
Purchases of treasury stock | -124,267 | -39,362 | -35,565 |
Dividend payments | -21,412 | -22,813 | -23,124 |
Payments on long-term debt | ' | -500 | -1,000 |
Excess tax benefits from stock-based compensation arrangements | 158 | 1,456 | 9,373 |
Net cash used in financing activities | -141,892 | -55,170 | -16,191 |
Net increase (decrease) in cash and cash equivalents | -8,359 | 25,444 | 11,456 |
Effect of exchange rate changes | -1,800 | 34 | -154 |
Cash and cash equivalents, beginning of year | 68,457 | 42,979 | 31,677 |
Cash and cash equivalents, end of year | 58,298 | 68,457 | 42,979 |
Supplemental disclosure of cash flow information | ' | ' | ' |
Cash paid during the year for interest | 2,325 | 2,348 | 2,396 |
Cash paid during the year for income taxes | 15,431 | 31,021 | 51,402 |
Supplemental disclosure of non-cash investing activities | ' | ' | ' |
Purchases of property, plant and equipment included in accounts payable | $444 | $108 | $353 |
Nature_of_Business_and_Summary
Nature of Business and Summary of Significant Accounting Policies | 12 Months Ended | ||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||
Accounting Policies [Abstract] | ' | ||||||||||||||||
Nature of Business and Summary of Significant Accounting Policies | ' | ||||||||||||||||
Note 1 – Nature of Business and Summary of Significant Accounting Policies | |||||||||||||||||
ADTRAN, Inc. is a leading global provider of networking and communications equipment. Our solutions enable voice, data, video and Internet communications across a variety of network infrastructures. These solutions are deployed by some of the world’s largest service providers, distributed enterprises and small and medium-sized businesses, public and private enterprises, and millions of individual users worldwide. | |||||||||||||||||
Principles of Consolidation | |||||||||||||||||
Our consolidated financial statements include ADTRAN and its wholly owned subsidiaries. All inter-company accounts and transactions have been eliminated in consolidation. | |||||||||||||||||
Changes in Classifications | |||||||||||||||||
Certain balance sheet amounts (including inventory, accounts receivable, unearned revenue and accrued expenses) and related disclosures have been revised to correct immaterial misclassifications in 2012 that were corrected in 2013. The revisions decreased both total assets and total liabilities each by $2.7 million at December 31, 2012. The revisions had no impact on our previously reported stockholders’ equity, income statement, comprehensive income, or earnings per share. Additionally, we corrected immaterial misclassifications between the operating and investing sections of our consolidated statements of cash flows and adjusted our 2012 and 2011 cash flows in these categories by $0.2 million and $0.1 million, respectively, in order to be consistent with the 2013 presentation. | |||||||||||||||||
Additionally, changes in classifications have been made to the prior period balances in other comprehensive income to conform to the current period’s presentation as a result of our adoption of Accounting Standards Update No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Comprehensive Income. | |||||||||||||||||
Out of Period Adjustment | |||||||||||||||||
During the year ended December 31, 2013, we identified two adjustments in the acquired NSN (formerly Nokia Siemens Networks) Broadband Access business (NSN BBA business) relating to customer payment discounts for one customer, and recoverable VAT taxes on certain vendor freight invoices that should have been recorded in prior periods. These adjustments resulted from a $0.4 million understatement of net income in 2012. We evaluated the impact of the adjustments on the results of our previously issued financial statements for the prior period affected and concluded that the impact was not material. We also evaluated the impact of the cumulative effect of the adjustments in the current year and concluded that the impact was not material to our results for the year 2013. Accordingly, during the year ended December 31, 2013 we recorded an out of period adjustment to correct these issues. | |||||||||||||||||
Use of Estimates | |||||||||||||||||
The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expense during the reporting period. Our more significant estimates include the obsolete and excess inventory reserves, warranty reserves, customer rebates, determination of the deferred revenue components of multiple element sales agreements, estimated costs to complete obligations associated with deferred revenues, estimated income tax provision and income tax contingencies, the fair value of stock-based compensation, impairment of goodwill, valuation and estimated lives of intangible assets, estimated working capital adjustments under negotiation related to the NSN BBA business acquisition, estimated pension liability, fair value of investments, and the evaluation of other-than-temporary declines in the value of investments. Actual amounts could differ significantly from these estimates. | |||||||||||||||||
Cash and Cash Equivalents | |||||||||||||||||
Cash and cash equivalents represent demand deposits, money market funds, and short-term investments classified as available-for-sale with original maturities of three months or less. We maintain depository investments with certain financial institutions. Although these depository investments may exceed government insured depository limits, we have evaluated the credit worthiness of these applicable financial institutions, and determined the risk of material financial loss due to the exposure of such credit risk to be minimal. As of December 31, 2013, $53.5 million of our cash and cash equivalents, primarily certain domestic money market funds and foreign depository accounts, were in excess of government provided insured depository limits. | |||||||||||||||||
Financial Instruments | |||||||||||||||||
The carrying amounts reported in the consolidated balance sheets for cash and cash equivalents, accounts receivable, and accounts payable approximate fair value due to the immediate or short-term maturity of these financial instruments. The carrying amount reported for bonds payable was $46.5 million, compared to an estimated fair value of $45.4 million, based on a debt security with a comparable interest rate and maturity and a Standard & Poor’s credit rating of A-. | |||||||||||||||||
Investments with contractual maturities beyond one year, such as our municipal variable rate demand notes, may be classified as short-term based on their highly liquid nature and because such marketable securities represent the investment of cash that is available for current operations. Despite the long-term nature of their stated contractual maturities, we routinely buy and sell these securities and we believe we have the ability to quickly sell them to the remarketing agent, tender agent, or issuer at par value plus accrued interest in the event we decide to liquidate our investment in a particular variable rate demand note. All income generated from these investments was recorded as interest income. We have not been required to record any losses relating to municipal variable rate demand notes. | |||||||||||||||||
Long-term investments represent a restricted certificate of deposit held at cost, municipal fixed-rate bonds, corporate bonds, a fixed income bond fund, marketable equity securities, and other equity investments. Marketable equity securities are reported at fair value as determined by the most recently traded price of the securities at the balance sheet date, although the securities may not be readily marketable due to the size of the available market. Unrealized gains and losses, net of tax, are reported as a separate component of stockholders’ equity. Realized gains and losses on sales of securities are computed under the specific identification method and are included in current income. We periodically review our investment portfolio for investments considered to have sustained an other-than-temporary decline in value. Impairment charges for other-than-temporary declines in value are recorded as realized losses in the accompanying consolidated statements of income. All of our investments at December 31, 2013 and 2012 are classified as available-for-sale securities. See Note 4 of Notes to Consolidated Financial Statements for additional information. | |||||||||||||||||
Accounts Receivable | |||||||||||||||||
We record accounts receivable at net realizable value. Prior to issuing payment terms to a new customer, we perform a detailed credit review of the customer. Credit limits are established for each new customer based on the results of this credit review. Payment terms are established for each new customer, and collection experience is reviewed periodically in order to determine if the customer’s payment terms and credit limits need to be revised. At December 31, 2013, one customer accounted for 13.1% of our total accounts receivable. At December 31, 2012, one customer accounted for 10.4% of our total accounts receivable. | |||||||||||||||||
We maintain an allowance for doubtful accounts for losses resulting from the inability of our customers to make required payments. We regularly review the allowance for doubtful accounts and consider factors such as the age of accounts receivable balances, the current economic conditions that may affect a customer’s ability to pay, significant one-time events and our historical experience. If the financial condition of a customer deteriorates, resulting in an impairment of their ability to make payments, we may be required to record an allowance for doubtful accounts. If circumstances change with regard to individual receivable balances that have previously been determined to be uncollectible (and for which a specific reserve has been established), a reduction in our allowance for doubtful accounts may be required. Our allowance for doubtful accounts was $130 thousand at December 31, 2013 and $6 thousand at December 31, 2012. | |||||||||||||||||
Other Receivables | |||||||||||||||||
Other receivables are comprised primarily of amounts due from subcontract manufacturers for product component transfers, accrued interest on investments and on a restricted certificate of deposit, and amounts due from employee stock option exercises. At December 31, 2013 and 2012, other receivables also included an estimated receivable due from NSN related to working capital adjustments that are currently under negotiation. | |||||||||||||||||
Inventory | |||||||||||||||||
Inventory is carried at the lower of cost or market, with cost being determined using the first-in, first-out method. Standard costs for material, labor and manufacturing overhead are used to value inventory. Standard costs are updated at least quarterly; therefore, inventory costs approximate actual costs at the end of each reporting period. We establish reserves for estimated excess, obsolete or unmarketable inventory equal to the difference between the cost of the inventory and the estimated fair value of the inventory based upon assumptions about future demand and market conditions. When we dispose of excess and obsolete inventories, the related write-downs are charged against the inventory reserve. See Note 6 of Notes to Consolidated Financial Statements for additional information. | |||||||||||||||||
Property, Plant and Equipment | |||||||||||||||||
Property, plant and equipment, which is stated at cost, is depreciated using the straight-line method over the estimated useful lives of the assets. We depreciate building and land improvements from five to 39 years, office machinery and equipment from three to seven years, engineering machinery and equipment from three to seven years, and computer software from three to five years. Expenditures for repairs and maintenance are charged to expense as incurred. Betterments that materially prolong the lives of the assets are capitalized. The cost of assets retired or otherwise disposed of and the related accumulated depreciation are removed from the accounts, and the gain or loss on such disposition is included in other income (expense), net in the accompanying consolidated statements of income. See Note 7 of Notes to Consolidated Financial Statements for additional information. | |||||||||||||||||
Liability for Warranty | |||||||||||||||||
Our products generally include warranties of 90 days to ten years for product defects. We accrue for warranty returns at the time revenue is recognized based on our estimate of the cost to repair or replace the defective products. We engage in extensive product quality programs and processes, including actively monitoring and evaluating the quality of our component suppliers. Our products continue to become more complex in both size and functionality as many of our product offerings migrate from line card applications to systems products. The increasing complexity of our products will cause warranty incidences, when they arise, to be more costly. Our estimates regarding future warranty obligations may change due to product failure rates, material usage, and other rework costs incurred in correcting a product failure. In addition, from time to time, specific warranty accruals may be recorded if unforeseen problems arise. Should our actual experience relative to these factors be worse than our estimates, we will be required to record additional warranty expense. Alternatively, if we provide for more reserves than we require, we will reverse a portion of such provisions in future periods. The liability for warranty obligations totaled $9.0 million and $9.7 million at December 31, 2013 and 2012, respectively. These liabilities are included in accrued expenses in the accompanying consolidated balance sheets. | |||||||||||||||||
A summary of warranty expense and write-off activity for the years ended December 31, 2013 and 2012 is as follows: | |||||||||||||||||
Year Ended December 31, | 2013 | 2012 | |||||||||||||||
(In thousands) | |||||||||||||||||
Balance at beginning of period | $ | 9,653 | $ | 4,118 | |||||||||||||
Plus: Amounts charged to cost and expenses | 4,051 | 5,363 | |||||||||||||||
Amounts assumed on acquisition | — | 3,781 | |||||||||||||||
Less: Deductions | (4,727 | ) | (3,609 | ) | |||||||||||||
Balance at end of period | $ | 8,977 | $ | 9,653 | |||||||||||||
Pension Benefit Plan Obligations | |||||||||||||||||
As a result of our acquisition of the NSN BBA business, we assumed a defined benefit pension plan covering employees in certain foreign countries. Pension benefit plan obligations are based on various assumptions used by our actuaries in calculating these amounts. These assumptions include discount rates, compensation rate increases, expected return on plan assets, retirement rates and mortality rates. Actual results that differ from the assumptions and changes in assumptions could affect future expenses and obligations. | |||||||||||||||||
Stock-Based Compensation | |||||||||||||||||
We have two Board and stockholder approved stock option plans from which stock options and other awards are available for grant to employees and directors. All employee and director stock options granted under our stock option plans have an exercise price equal to the fair market value of the award, as defined in the plan, of the underlying common stock on the grant date. There are currently no vesting provisions tied to performance or market conditions for any option awards; vesting for all outstanding option grants is based only on continued service as an employee or director of ADTRAN. All of our outstanding stock option awards are classified as equity awards. | |||||||||||||||||
Under the provisions of our approved plans, we made grants of performance-based restricted stock units to five of our executive officers in 2013, 2012 and 2011. The restricted stock units are subject to a market condition based on the relative total shareholder return of ADTRAN against all the companies in the NASDAQ Telecommunications Index and vest at the end of a three-year performance period. The restricted stock units are converted into shares of common stock upon vesting. Depending on the relative total shareholder return over the performance period, the executive officers may earn from 0% to 150% of the number of restricted stock units granted. The fair value of the award is based on the market price of our common stock on the date of grant, adjusted for the expected outcome of the impact of market conditions using a Monte Carlo Simulation valuation method. The recipients of the restricted stock units also earn dividend credits during the performance period, which will be paid in cash upon the issuance of common stock for the restricted stock units. | |||||||||||||||||
Stock-based compensation expense recognized in 2013, 2012 and 2011 was approximately $9.1 million, $9.3 million and $9.2 million, respectively. As of December 31, 2013, total compensation cost related to non-vested stock options, restricted stock units and restricted stock not yet recognized was approximately $18.8 million, which is expected to be recognized over an average remaining recognition period of 2.7 years. See Note 3 of Notes to Consolidated Financial Statements for additional information. | |||||||||||||||||
Impairment of Long-Lived Assets | |||||||||||||||||
We review long-lived assets used in operations for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable and the undiscounted cash flows estimated to be generated by the asset are less than the asset’s carrying value. An impairment loss would be recognized in the amount by which the recorded value of the asset exceeds the fair value of the asset, measured by the quoted market price of an asset or an estimate based on the best information available in the circumstances. There were no impairment losses recognized during 2013, 2012 or 2011. | |||||||||||||||||
Goodwill and Purchased Intangible Assets | |||||||||||||||||
We evaluate the carrying value of goodwill during the fourth quarter of each year and between annual evaluations if events occur or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying amount. When evaluating whether goodwill is impaired, we first assess qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. If we determine that the two-step quantitative test is necessary, then we compare the fair value of the reporting unit to which the goodwill is assigned to the reporting unit’s carrying amount, including goodwill. If the carrying amount of the reporting unit exceeds its fair value, then the amount of the impairment loss is measured. There were no impairment losses recognized during 2013, 2012 or 2011. Purchased intangible assets with finite lives are carried at cost, less accumulated amortization. Amortization is recorded over the estimated useful lives of the respective assets, which is 2.5 to 14 years. | |||||||||||||||||
Research and Development Costs | |||||||||||||||||
Research and development costs include compensation for engineers and support personnel, outside contracted services, depreciation and material costs associated with new product development, the enhancement of current products, and product cost reductions. We continually evaluate new product opportunities and engage in intensive research and product development efforts. Research and development costs totaled $131.1 million, $126.0 million and $100.3 million for the years ended December 31, 2013, 2012 and 2011, respectively. | |||||||||||||||||
Other Comprehensive Income | |||||||||||||||||
Other comprehensive income consists of unrealized gains (losses) on available-for-sale securities, reclassification adjustments for amounts included in net income related to impairments of available-for-sale securities and realized gains (losses) on available-for-sale securities, defined benefit plan adjustments and foreign currency translation adjustments. | |||||||||||||||||
The following tables present changes in accumulated other comprehensive income, net of tax, by component for the years ended December 31, 2011, 2012 and 2013: | |||||||||||||||||
(In thousands) | Unrealized | Defined | Foreign | Total | |||||||||||||
Gains (Losses) | Benefit Plan | Currency | |||||||||||||||
on Available- | Adjustments | Adjustments | |||||||||||||||
for-Sale | |||||||||||||||||
Securities | |||||||||||||||||
Balance at December 31, 2010 | $ | 23,852 | $ | — | $ | 3,096 | $ | 26,948 | |||||||||
Other comprehensive loss before reclassifications | (6,784 | ) | — | (154 | ) | (6,938 | ) | ||||||||||
Amounts reclassified from accumulated other comprehensive income | (6,908 | ) | — | — | (6,908 | ) | |||||||||||
Balance at December 31, 2011 | $ | 10,160 | $ | — | $ | 2,942 | $ | 13,102 | |||||||||
Other comprehensive income (loss) before reclassifications | 5,426 | (1,952 | ) | 170 | 3,644 | ||||||||||||
Amounts reclassified from accumulated other comprehensive income | (5,478 | ) | — | — | (5,478 | ) | |||||||||||
Balance at December 31, 2012 | $ | 10,108 | $ | (1,952 | ) | $ | 3,112 | $ | 11,268 | ||||||||
Other comprehensive income (loss) before reclassifications | 5,508 | 1,061 | (2,205 | ) | 4,364 | ||||||||||||
Amounts reclassified from accumulated other comprehensive income | (4,879 | ) | — | — | (4,879 | ) | |||||||||||
Balance at December 31, 2013 | $ | 10,737 | $ | (891 | ) | $ | 907 | $ | 10,753 | ||||||||
The following tables present the details of reclassifications out of accumulated other comprehensive income for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||
(In thousands) | 2013 | ||||||||||||||||
Details about Accumulated Other Comprehensive | Amount Reclassified | Affected Line Item in the | |||||||||||||||
Income Components | from Accumulated Other | Statement Where Net Income Is | |||||||||||||||
Comprehensive Income | Presented | ||||||||||||||||
Unrealized gains (losses) on available-for-sale securities: | |||||||||||||||||
Net realized gain on sales of securities | $ | 8,023 | Net realized investment gain | ||||||||||||||
Impairment expense | (25 | ) | Net realized investment gain | ||||||||||||||
Total reclassifications for the period, before tax | 7,998 | ||||||||||||||||
Tax (expense) benefit | (3,119 | ) | |||||||||||||||
Total reclassifications for the period, net of tax | $ | 4,879 | |||||||||||||||
(In thousands) | 2012 | ||||||||||||||||
Details about Accumulated Other Comprehensive | Amount Reclassified | Affected Line Item in the | |||||||||||||||
Income Components | from Accumulated Other | Statement Where Net Income | |||||||||||||||
Comprehensive Income | Is Presented | ||||||||||||||||
Unrealized gains (losses) on available-for-sale securities: | |||||||||||||||||
Net realized gain on sales of securities | $ | 9,662 | Net realized investment gain | ||||||||||||||
Impairment expense | (682 | ) | Net realized investment gain | ||||||||||||||
Total reclassifications for the period, before tax | 8,980 | ||||||||||||||||
Tax (expense) benefit | (3,502 | ) | |||||||||||||||
Total reclassifications for the period, net of tax | $ | 5,478 | |||||||||||||||
(In thousands) | 2011 | ||||||||||||||||
Details about Accumulated Other Comprehensive | Amount Reclassified | Affected Line Item in the | |||||||||||||||
Income Components | from Accumulated Other | Statement Where Net Income | |||||||||||||||
Comprehensive Income | Is Presented | ||||||||||||||||
Unrealized gains (losses) on available-for-sale securities: | |||||||||||||||||
Net realized gain on sales of securities | $ | 11,393 | Net realized investment gain | ||||||||||||||
Impairment expense | (68 | ) | Net realized investment gain | ||||||||||||||
Total reclassifications for the period, before tax | 11,325 | ||||||||||||||||
Tax (expense) benefit | (4,417 | ) | |||||||||||||||
Total reclassifications for the period, net of tax | $ | 6,908 | |||||||||||||||
The following tables present the tax effects related to the change in each component of other comprehensive income for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||
2013 | |||||||||||||||||
(In thousands) | Before-Tax | Tax | Net-of-Tax | ||||||||||||||
Amount | (Expense) | Amount | |||||||||||||||
Benefit | |||||||||||||||||
Unrealized gains (losses) on available-for-sale securities | $ | 9,030 | $ | (3,522 | ) | $ | 5,508 | ||||||||||
Reclassification adjustment for amounts included in net income | (7,998 | ) | 3,119 | (4,879 | ) | ||||||||||||
Defined benefit plan adjustments | 1,061 | — | 1,061 | ||||||||||||||
Foreign currency translation adjustment | (2,205 | ) | — | (2,205 | ) | ||||||||||||
Total Other Comprehensive Income (Loss) | $ | (112 | ) | $ | (403 | ) | $ | (515 | ) | ||||||||
2012 | |||||||||||||||||
(In thousands) | Before-Tax | Tax | Net-of-Tax | ||||||||||||||
Amount | (Expense) | Amount | |||||||||||||||
Benefit | |||||||||||||||||
Unrealized gains (losses) on available-for-sale securities | $ | 8,895 | $ | (3,469 | ) | $ | 5,426 | ||||||||||
Reclassification adjustment for amounts included in net income | (8,980 | ) | 3,502 | (5,478 | ) | ||||||||||||
Defined benefit plan adjustments | (1,952 | ) | — | (1,952 | ) | ||||||||||||
Foreign currency translation adjustment | 170 | — | 170 | ||||||||||||||
Total Other Comprehensive Income (Loss) | $ | (1,867 | ) | $ | 33 | $ | (1,834 | ) | |||||||||
2011 | |||||||||||||||||
(In thousands) | Before-Tax | Tax | Net-of-Tax | ||||||||||||||
Amount | (Expense) | Amount | |||||||||||||||
Benefit | |||||||||||||||||
Unrealized gains (losses) on available-for-sale securities | $ | (11,121 | ) | $ | 4,337 | $ | (6,784 | ) | |||||||||
Reclassification adjustment for amounts included in net income | (11,325 | ) | 4,417 | (6,908 | ) | ||||||||||||
Foreign currency translation adjustment | (154 | ) | — | (154 | ) | ||||||||||||
Total Other Comprehensive Income (Loss) | $ | (22,600 | ) | $ | 8,754 | $ | (13,846 | ) | |||||||||
Income Taxes | |||||||||||||||||
The provision for income taxes has been determined using the asset and liability approach of accounting for income taxes. Under this approach, deferred taxes represent the future tax consequences expected to occur when the reported amounts of assets and liabilities are recovered or paid. The provision for income taxes represents income taxes paid or payable for the current year plus the change in deferred taxes during the year. Deferred taxes result from the difference between financial and tax bases of our assets and liabilities and are adjusted for changes in tax rates and tax laws when such changes are enacted. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized. | |||||||||||||||||
We establish reserves to remove some or all of the tax benefit of any of our tax positions at the time we determine that the positions become uncertain. We adjust these reserves, including any impact on the related interest and penalties, as facts and circumstances change. | |||||||||||||||||
Foreign Currency | |||||||||||||||||
We record transactions denominated in foreign currencies on a monthly basis using exchange rates from throughout the year. Assets and liabilities denominated in foreign currencies are translated at the balance sheet dates using the closing rates of exchange between those foreign currencies and the U.S. dollar with any transaction gains or losses reported in other income (expense). Adjustments resulting from translating financial statements of international subsidiaries are recorded as a component of accumulated other comprehensive income (loss). | |||||||||||||||||
Revenue Recognition | |||||||||||||||||
Revenue is generally recognized when persuasive evidence of an arrangement exists, delivery has occurred, the product price is fixed or determinable, collection of the resulting receivable is reasonably assured, and product returns are reasonably estimable. For product sales, revenue is generally recognized upon shipment of the product to our customer in accordance with the title transfer terms of the sales agreement, generally FOB shipping point. In the case of consigned inventory, revenue is recognized when the end customer assumes ownership of the product. Contracts that contain multiple deliverables are evaluated to determine the units of accounting, and the consideration from the arrangement is allocated to each unit of accounting based on the relative selling price and corresponding terms of the contract. We use vendor-specific objective evidence of selling price. When this evidence is not available, we are generally not able to determine third-party evidence of selling price because of the extent of customization among competing products or services from other companies. We record revenue associated with installation services when all contractual obligations are complete. In instances where customer acceptance is required, revenue is deferred until all acceptance criteria have been met. Contracts that include both installation services and product sales are evaluated for revenue recognition in accordance with contract terms. As a result, depending on contract terms, installation services may be considered a separate deliverable or may be considered a combined single unit of accounting with the delivered product. Generally, either the purchaser, ADTRAN, or a third party can perform the installation of our products. Shipping fees are recorded as revenue and the related cost is included in cost of sales. Sales taxes invoiced to customers are included in revenues, and represent less than one percent of total revenues. The corresponding sales taxes paid are included in cost of goods sold. Value added taxes collected from customers in international jurisdictions are recorded in accrued expenses as a liability. Revenue is recorded net of discounts. Sales returns are accrued based on historical sales return experience, which we believe provides a reasonable estimate of future returns. | |||||||||||||||||
A portion of Enterprise Networks products are sold to a non-exclusive distribution network of major technology distributors in the United States. These large organizations then distribute or provide fulfillment services to an extensive network of value-added resellers and system integrators. Value-added resellers and system integrators may be affiliated with us as a channel partner, or they may purchase from the distributor in an unaffiliated fashion. Additionally, with certain limitations our distributors may return unused and unopened product for stock-balancing purposes when such returns are accompanied by offsetting orders for products of equal or greater value. | |||||||||||||||||
We participate in cooperative advertising and market development programs with certain customers. We use these programs to reimburse customers for certain forms of advertising, and in general, to allow our customers credits up to a specified percentage of their net purchases. Our costs associated with these programs are estimated and included in marketing expenses in our consolidated statements of income. We also participate in rebate programs to provide sales incentives for certain products. Our costs associated with these programs are estimated and accrued at the time of sale, and are recorded as a reduction of sales in our consolidated statements of income. | |||||||||||||||||
Unearned Revenue | |||||||||||||||||
Unearned revenue primarily represents customer billings on our maintenance service programs and unearned revenues relating to multiple element contracts where we still have contractual obligations to our customers. We currently offer maintenance contracts ranging from one to five years, primarily on Enterprise Networks Division products sold through distribution channels. Revenue attributable to maintenance contracts is recognized on a straight-line basis over the related contract term. In addition, we provide software maintenance and a variety of hardware maintenance services to Carrier Networks Division customers, which include customers of the acquired NSN BBA business, under contracts with terms up to ten years. At December 31, 2013 and 2012, unearned revenue was as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Current unearned revenue | $ | 22,205 | $ | 35,326 | |||||||||||||
Non-current unearned revenue | 14,643 | 22,377 | |||||||||||||||
Total | $ | 36,848 | $ | 57,703 | |||||||||||||
Other Income (Expense), Net | |||||||||||||||||
Other income (expense), net, is comprised primarily of miscellaneous income and expense, gains and losses on foreign currency transactions, investment account management fees, and gains or losses on the disposal of property, plant and equipment occurring in the normal course of business. | |||||||||||||||||
Earnings per Share | |||||||||||||||||
Earnings per common share, and earnings per common share assuming dilution, are based on the weighted average number of common shares and, when dilutive, common equivalent shares outstanding during the year. See Note 14 of Notes to Consolidated Financial Statements for additional information. | |||||||||||||||||
Dividends | |||||||||||||||||
The Board of Directors presently anticipates that it will declare a regular quarterly dividend as long as the current tax treatment of dividends exists and adequate levels of liquidity are maintained. During the years ended December 31, 2013, 2012 and 2011, we paid $21.4 million, $22.8 million and $23.1 million, respectively, in shareholder dividends. On January 21, 2014, the Board of Directors declared a quarterly cash dividend of $0.09 per common share to be paid to shareholders of record at the close of business on February 6, 2014. The ex-dividend date was February 4, 2014 and the payment date was February 20, 2014. The quarterly dividend payment was $5.1 million. | |||||||||||||||||
Business Combinations | |||||||||||||||||
We use the acquisition method to account for business combinations. Under the acquisition method of accounting, we recognize the assets acquired and liabilities assumed at their fair value on the acquisition date. Goodwill is measured as the excess of the consideration transferred over the net assets acquired. Costs incurred to complete the business combination, such as legal, accounting or other professional fees, are charged to general and administrative expenses as they are incurred. | |||||||||||||||||
Recently Issued Accounting Standards | |||||||||||||||||
During 2013, we adopted the following accounting standards, which had no material effect on our consolidated results of operations or financial condition: | |||||||||||||||||
In February 2013, the FASB issued Accounting Standards Update No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income (ASU 2013-02). ASU 2013-02 requires entities to provide information about the amounts reclassified out of accumulated other comprehensive income by component either on the face of the financial statements or in the footnotes. ASU 2013-02 does not change the current requirements for reporting net income or other comprehensive income in the financial statements. This update is effective prospectively for reporting periods beginning after December 15, 2012. We adopted this amendment during the first quarter of 2013, and we have provided the disclosures required for the years ended December 31, 2013, 2012 and 2011 in Note 1 of Notes to Consolidated Financial Statements. |
Business_Combinations
Business Combinations | 12 Months Ended | ||||||||
Dec. 31, 2013 | |||||||||
Business Combinations [Abstract] | ' | ||||||||
Business Combinations | ' | ||||||||
Note 2 – Business Combinations | |||||||||
On May 4, 2012, we acquired the NSN BBA business. This acquisition provides us with an established customer base in key markets and complementary, market-focused products and was accounted for as a business combination. We have included the financial results of the NSN BBA business in our consolidated financial statements since the date of acquisition. These revenues are included in the Carrier Networks division in the Broadband Access subcategory. | |||||||||
Upon acquisition, we received a cash payment of $7.5 million from NSN and recorded a bargain purchase gain of $1.8 million, net of income taxes, subject to customary working capital adjustments between the parties as defined in the purchase agreement. As of December 31, 2013, the parties were in the process of negotiating final working capital adjustments. We have adjusted the purchase price allocation to record additional estimated liabilities and an estimated receivable from NSN related to working capital adjustments under negotiation. The bargain purchase gain of $1.8 million represents the excess of the consideration exchanged over the fair value of the assets acquired and liabilities assumed. We have assessed the recognition and measurements of the assets acquired and liabilities assumed based on historical and pro forma data for future periods and have concluded that our valuation procedures and resulting measures were appropriate. The gain is included in the line item “Gain on bargain purchase of a business” in the 2012 Consolidated Statements of Income. | |||||||||
The allocation of the purchase price to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date is as follows: | |||||||||
(In Thousands) | |||||||||
Other receivables | $ | 9,486 | |||||||
Inventory | 21,068 | ||||||||
Property, plant and equipment | 5,035 | ||||||||
Accounts payable | (5,194 | ) | |||||||
Unearned revenue | (18,203 | ) | |||||||
Accrued expenses | (3,361 | ) | |||||||
Accrued wages and benefits | (2,251 | ) | |||||||
Deferred tax liability | (788 | ) | |||||||
Non-current unearned revenue | (19,886 | ) | |||||||
Net liabilities assumed | (14,094 | ) | |||||||
Customer relationships | 5,162 | ||||||||
Developed technology | 3,176 | ||||||||
Other | 13 | ||||||||
Gain on bargain purchase of a business, net of tax | (1,753 | ) | |||||||
Net consideration received from seller | $ | (7,496 | ) | ||||||
The fair value of the customer relationships acquired was calculated using a discounted cash flow method (excess earnings) and is being amortized using a declining balance method derived from projected customer revenue over an average estimated useful life of 13 years. The fair value of the developed technology acquired was calculated using a discounted cash flow method (relief from royalty) and is being amortized using the straight-line method over an estimated useful life of five years. | |||||||||
For the years ended December 31, 2013 and 2012, we incurred acquisition and integration related expenses and amortization of acquired intangibles of $2.9 million and $7.9 million, respectively, related to this acquisition. | |||||||||
The following supplemental pro forma information presents the financial results of the acquired NSN BBA business for the years ended December 31, 2012 and 2011. The pro forma results for the period January 1, 2012 to May 4, 2012 and January 1, 2011 to December 31, 2011 are not included in our consolidated financial results. | |||||||||
This supplemental pro forma information does not purport to be indicative of what would have occurred had the acquisition of the NSN BBA business been completed on January 1, 2011, nor are they indicative of any future results. | |||||||||
(In thousands) (Unaudited) | 2012 | 2011 | |||||||
Pro forma revenue | $ | 119,600 | $ | 196,256 | |||||
Pro forma pre-tax loss | $ | (23,621 | ) | $ | (36,980 | ) | |||
Weighted average exchange rate during the period (EURO/USD) | € | 1.00/$1.29 | € | 1.00/$1.38 | |||||
On August 4, 2011, we acquired all of the outstanding stock of Bluesocket, Inc., a provider of wireless network solutions with virtual control, for $23.7 million in cash. The acquisition provides us with IEEE802.11N enterprise class wireless LAN expertise, technology, and products to address the growing transition within small-medium enterprises and large enterprises to wireless networks and mobile devices. We have included the financial results of Bluesocket in our consolidated financial statements since the date of acquisition. Pro forma results of operations prior to the closing date for the acquisition have not been presented because the effect of the acquisition was not material to our financial results. The allocation of the purchase price to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date is as follows: | |||||||||
(In Thousands) | |||||||||
Cash | $ | 1,027 | |||||||
Accounts receivable | 298 | ||||||||
Inventory | 792 | ||||||||
Prepaid expenses | 357 | ||||||||
Property, plant and equipment | 173 | ||||||||
Deferred tax assets, net | 12,962 | ||||||||
Accounts payable | (441 | ) | |||||||
Unearned revenue | (600 | ) | |||||||
Accrued expenses | (332 | ) | |||||||
Net assets acquired | 14,236 | ||||||||
Customer relationships | 1,530 | ||||||||
Developed technology | 3,230 | ||||||||
Intellectual property | 930 | ||||||||
Trade names | 270 | ||||||||
Goodwill | 3,492 | ||||||||
Total purchase price | $ | 23,688 | |||||||
During the fourth quarter of 2011, the purchase price and purchase price allocation were adjusted for our final valuations. The adjustments resulted in a decrease to the goodwill recognized in the transaction. | |||||||||
The net deferred tax assets acquired are primarily related to net operating losses and previously capitalized and unamortized research and development expense for tax deduction purposes. | |||||||||
The fair value of the customer relationships, developed technology and intellectual property acquired was calculated using an income approach (excess earnings method) and is being amortized using the straight-line method. The customer relationships and intellectual property are being amortized over an estimated useful life of 7 years and the developed technology is being amortized over an average estimated useful life of 4.5 years. | |||||||||
The fair value of the trade names acquired was calculated using an income approach (relief from royalty method) and is being amortized using the straight-line method over the estimated useful life of 4.5 years. | |||||||||
The goodwill of $3.5 million generated from this acquisition is primarily related to expected synergies and was assigned to our Enterprise Networks division. The goodwill will not be deductible for U.S. federal income tax purposes. | |||||||||
For the years ended December 31, 2013, 2012 and 2011, we incurred integration related expenses and amortization of acquired intangibles of $1.1 million, $1.5 million and $1.7 million, respectively, related to this acquisition. |
Stock_Incentive_Plans
Stock Incentive Plans | 12 Months Ended | ||||||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||||||
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | ' | ||||||||||||||||||||
Stock Incentive Plans | ' | ||||||||||||||||||||
Note 3 – Stock Incentive Plans | |||||||||||||||||||||
Stock Incentive Program Descriptions | |||||||||||||||||||||
Our Board of Directors adopted the 1996 Employee Incentive Stock Option Plan (1996 Plan) effective February 14, 1996, as amended, under which 17.0 million shares of common stock were authorized for issuance to certain employees and officers through incentive stock options and non-qualified stock options. Options granted under the 1996 Plan typically become exercisable beginning after one year of continued employment, normally pursuant to a four or five-year vesting schedule beginning on the first anniversary of the grant date, and have a ten-year contractual term. The 1996 Plan expired February 14, 2006, and expiration dates of options outstanding at December 31, 2013 under the 1996 Plan range from 2014 to 2015. | |||||||||||||||||||||
On January 23, 2006, the Board of Directors adopted the 2006 Employee Stock Incentive Plan (2006 Plan), which authorizes 13.0 million shares of common stock for issuance to certain employees and officers through incentive stock options and non-qualified stock options, stock appreciation rights, restricted stock and restricted stock units. The 2006 Plan was adopted by stockholder approval at our annual meeting of stockholders held on May 9, 2006. Options granted under the 2006 Plan typically become exercisable beginning after one year of continued employment, normally pursuant to a four-year vesting schedule beginning on the first anniversary of the grant date, and have a ten-year contractual term. Expiration dates of options outstanding at December 31, 2013 under the 2006 Plan range from 2016 to 2023. | |||||||||||||||||||||
Our stockholders approved the 2010 Directors Stock Plan (2010 Directors Plan) on May 5, 2010, under which 0.5 million shares of common stock have been reserved. This plan replaces the 2005 Directors Stock Option Plan. The 2010 Directors Plan provides that the Company may issue stock options, restricted stock and restricted stock units to our non-employee directors. Stock awards issued under the 2010 Directors Plan normally become vested in full on the first anniversary of the grant date. Options issued under the 2010 Directors Plan have a ten-year contractual term. We currently also have options outstanding under the 1995 Directors Plan, as amended, and the 2005 Directors Stock Option Plan. Expiration dates of options outstanding under both plans at December 31, 2013 range from 2014 to 2019. | |||||||||||||||||||||
The following table is a summary of our stock options outstanding as of December 31, 2012 and 2013 and the changes that occurred during 2013: | |||||||||||||||||||||
(In thousands, except per share amounts) | Number of | Weighted | Weighted Avg. | Aggregate | |||||||||||||||||
Options | Average | Remaining | Intrinsic Value | ||||||||||||||||||
Exercise Price | Contractual Life | ||||||||||||||||||||
in Years | |||||||||||||||||||||
Options outstanding, December 31, 2012 | 6,035 | $ | 24.81 | 6.69 | $ | 5,154 | |||||||||||||||
Options granted | 1,005 | $ | 23.64 | ||||||||||||||||||
Options cancelled/forfeited | (491 | ) | $ | 29.6 | |||||||||||||||||
Options exercised | (191 | ) | $ | 19.07 | |||||||||||||||||
Options outstanding, December 31, 2013 | 6,358 | $ | 24.43 | 6.6 | $ | 25,878 | |||||||||||||||
Options exercisable, December 31, 2013 | 3,911 | $ | 24.75 | 5.19 | $ | 15,336 | |||||||||||||||
All of the options above were issued at exercise prices that approximate fair market value at the date of grant. At December 31, 2013, 6.0 million options were available for grant under the shareholder approved plans. | |||||||||||||||||||||
The aggregate intrinsic values in the table above represent the total pre-tax intrinsic value (the difference between ADTRAN’s closing stock price on the last trading day of 2013 and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on December 31, 2013. The amount of aggregate intrinsic value will change based on the fair market value of ADTRAN’s stock. | |||||||||||||||||||||
The total pre-tax intrinsic value of options exercised during 2013, 2012 and 2011 was $1.1 million, $4.5 million and $39.8 million, respectively. The fair value of options fully vesting during 2013, 2012 and 2011 was $7.7 million, $7.7 million and $7.3 million, respectively. | |||||||||||||||||||||
The following table further describes our stock options outstanding as of December 31, 2013: | |||||||||||||||||||||
Options Outstanding | Options Exercisable | ||||||||||||||||||||
Range of | Options | Weighted Avg. | Weighted | Options | Weighted | ||||||||||||||||
Exercise Prices | Outstanding at | Remaining | Average | Exercisable at | Average | ||||||||||||||||
12/31/13 | Contractual Life | Exercise | 12/31/13 | Exercise | |||||||||||||||||
(In thousands) | in Years | Price | (In thousands) | Price | |||||||||||||||||
$14.88 – 18.07 | 1,456 | 7.42 | $ | 16.37 | 742 | $ | 15.79 | ||||||||||||||
$18.08 – 23.36 | 1,002 | 3.04 | $ | 22.59 | 1,001 | $ | 22.59 | ||||||||||||||
$23.37 – 26.06 | 1,745 | 8.1 | $ | 23.6 | 745 | $ | 23.54 | ||||||||||||||
$26.07 – 30.04 | 466 | 3.59 | $ | 29.39 | 383 | $ | 29.71 | ||||||||||||||
$30.05 – 30.36 | 905 | 7.67 | $ | 30.36 | 454 | $ | 30.36 | ||||||||||||||
$30.37 – 41.92 | 784 | 6.84 | $ | 33.78 | 586 | $ | 33.76 | ||||||||||||||
6,358 | 3,911 | ||||||||||||||||||||
Restricted Stock Program Description | |||||||||||||||||||||
On November 6, 2008, the Compensation Committee of the Board of Directors approved the Performance Shares Agreement under the 2006 Plan which sets forth the terms and conditions of awards of performance-based restricted stock units (RSUs). Of the 13.0 million shares of common stock authorized for issuance under the 2006 Plan, we may grant up to 5.0 million shares of common stock for issuance to certain employees and officers for awards other than stock options, which would include RSUs. Under a proposal that was approved by the Board of Directors and shareholders at the 2010 annual meeting, the number of shares available for awards other than stock options under all stock plans was reduced to 3.3 million. The number of shares of common stock earned by a recipient pursuant to the RSUs is subject to a market condition based on ADTRAN’s relative total shareholder return against all companies in the NASDAQ Telecommunications Index at the end of a three-year performance period. Depending on the relative total shareholder return over the performance period, the recipient may earn from 0% to 150% of the shares underlying the RSUs, with the shares earned distributed upon the vesting of the RSUs at the end of the three-year performance period. The fair value of the award is based on the market price of our common stock on the date of grant, adjusted for the expected outcome of the impact of market conditions using a Monte Carlo Simulation valuation method. A portion of the granted RSUs also vest and the underlying shares become deliverable upon the death or disability of the recipient or upon a change of control of ADTRAN, as defined by the 2006 Plan. The recipients of the RSUs receive dividend credits based on the shares of common stock underlying the RSUs. The dividend credits are vested and earned in the same manner as the RSUs and will be paid in cash upon the issuance of common stock for the RSUs. | |||||||||||||||||||||
The following table is a summary of our RSUs and restricted stock outstanding as of December 31, 2012 and 2013 and the changes that occurred during 2013: | |||||||||||||||||||||
(In thousands, except per share amounts) | Number of | Weighted | |||||||||||||||||||
shares | Average Grant | ||||||||||||||||||||
Date Fair Value | |||||||||||||||||||||
Unvested RSUs and restricted stock outstanding, December 31, 2012 | 103 | $ | 29.25 | ||||||||||||||||||
RSUs and restricted stock granted | 41 | $ | 27.47 | ||||||||||||||||||
RSUs and restricted stock vested | (39 | ) | $ | 29.42 | |||||||||||||||||
Adjustments to shares granted due to shares earned at vesting | (10 | ) | $ | 39.21 | |||||||||||||||||
Unvested RSUs and restricted stock outstanding, December 31, 2013 | 95 | $ | 28.38 | ||||||||||||||||||
At December 31, 2013, total compensation cost related to the non-vested portion of RSUs and restricted stock not yet recognized was approximately $1.7 million, which is expected to be recognized over an average remaining recognition period of 1.9 years. | |||||||||||||||||||||
Valuation and Expense Information | |||||||||||||||||||||
We use the Black-Scholes option pricing model (Black-Scholes Model) for the purpose of determining the estimated fair value of stock option awards on the date of grant. The Black-Scholes Model requires the input of certain assumptions that involve judgment. Because our stock options have characteristics significantly different from those of traded options, and because changes in the input assumptions can materially affect the fair value estimate, existing models may not provide reliable measures of fair value of our stock options. We use a Monte Carlo Simulation valuation method to value our performance-based RSUs. The fair value of restricted stock issued is equal to the closing price of our stock on the date of grant. We will continue to assess the assumptions and methodologies used to calculate the estimated fair value of stock-based compensation. If circumstances change, and additional data becomes available over time, we may change our assumptions and methodologies, which may materially impact our fair value determination. | |||||||||||||||||||||
The following table summarizes stock-based compensation expense related to stock options, RSUs and restricted stock for the years ended December 31, 2013, 2012 and 2011, which was recognized as follows: | |||||||||||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||||||||||
Stock-based compensation expense included in cost of sales | $ | 465 | $ | 422 | $ | 412 | |||||||||||||||
Selling, general and administrative expense | 4,443 | 4,351 | 4,316 | ||||||||||||||||||
Research and development expense | 4,165 | 4,491 | 4,441 | ||||||||||||||||||
Stock-based compensation expense included in operating expenses | 8,608 | 8,842 | 8,757 | ||||||||||||||||||
Total stock-based compensation expense | 9,073 | 9,264 | 9,169 | ||||||||||||||||||
Tax benefit for expense associated with non-qualified options | (1,298 | ) | (1,234 | ) | (1,321 | ) | |||||||||||||||
Total stock-based compensation expense, net of tax | $ | 7,775 | $ | 8,030 | $ | 7,848 | |||||||||||||||
At December 31, 2013, total compensation cost related to non-vested stock options not yet recognized was approximately $17.1 million, which is expected to be recognized over an average remaining recognition period of 2.8 years. | |||||||||||||||||||||
The stock option pricing model requires the use of several assumptions that impact the fair value estimate. These variables include, but are not limited to, the volatility of our stock price and employee exercise behaviors. There were no material changes made during 2013 to the methodology used to determine our assumptions. | |||||||||||||||||||||
The weighted-average estimated fair value of stock options granted to employees and directors during the years ended December 31, 2013, 2012 and 2011 was $8.35 per share, $5.60 per share and $9.53 per share, respectively, with the following weighted-average assumptions: | |||||||||||||||||||||
2013 | 2012 | 2011 | |||||||||||||||||||
Expected volatility | 39.92 | % | 39.46 | % | 38.32 | % | |||||||||||||||
Risk-free interest rate | 1.71 | % | 0.96 | % | 1.01 | % | |||||||||||||||
Expected dividend yield | 1.52 | % | 2.05 | % | 1.19 | % | |||||||||||||||
Expected life (in years) | 6.36 | 6.18 | 5.15 | ||||||||||||||||||
We based our estimate of expected volatility for the years ended December 31, 2013, 2012 and 2011 on the sequential historical daily trading data of our common stock for a period equal to the expected life of the options granted. The selection of the historical volatility method was based on available data indicating our historical volatility is as equally representative of our future stock price trends as is our implied volatility. We have no reason to believe the future volatility of our stock price is likely to differ from its past volatility. | |||||||||||||||||||||
The risk-free interest rate assumption is based upon implied yields of U.S. Treasury zero-coupon bonds on the date of grant having a remaining term equal to the expected life of the options granted. The dividend yield is based on our historical and expected dividend payouts. | |||||||||||||||||||||
The expected life of our stock options is based upon historical exercise and cancellation activity of our previous stock-based grants with a ten-year contractual term. | |||||||||||||||||||||
The RSU pricing model also requires the use of several significant assumptions that impact the fair value estimate. The estimated fair value of the RSUs granted to employees during the years ended December 31, 2013, 2012 and 2011 was $27.72 per share, $19.46 per share and $38.73 per share, respectively, with the following assumptions: | |||||||||||||||||||||
2013 | 2012 | 2011 | |||||||||||||||||||
Expected volatility | 38.83 | % | 37.75 | % | 39.32 | % | |||||||||||||||
Risk-free interest rate | 0.61 | % | 0.38 | % | 0.37 | % | |||||||||||||||
Expected dividend yield | 1.52 | % | 2.12 | % | 1.08 | % | |||||||||||||||
Stock-based compensation expense recognized in our Consolidated Statements of Income for the years ended December 31, 2013, 2012 and 2011 is based on RSUs and options ultimately expected to vest, and has been reduced for estimated forfeitures. Estimates for forfeiture rates are based upon historical experience and are evaluated quarterly. We expect our forfeiture rate for stock option awards to be approximately 2.5% annually. We estimated a 0% forfeiture rate for our RSUs and restricted stock due to the limited number of recipients and historical experience for these awards. |
Investments
Investments | 12 Months Ended | ||||||||||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||||||||||
Investments Debt And Equity Securities [Abstract] | ' | ||||||||||||||||||||||||
Investments | ' | ||||||||||||||||||||||||
Note 4 – Investments | |||||||||||||||||||||||||
At December 31, 2013, we held the following securities and investments, recorded at either fair value or cost: | |||||||||||||||||||||||||
Amortized | Gross Unrealized | Fair Value / | |||||||||||||||||||||||
Cost | Carrying | ||||||||||||||||||||||||
(In thousands) | Gains | Losses | Value | ||||||||||||||||||||||
Deferred compensation plan assets | $ | 12,300 | $ | 2,847 | $ | (24 | ) | $ | 15,123 | ||||||||||||||||
Corporate bonds | 166,370 | 534 | (45 | ) | 166,859 | ||||||||||||||||||||
Municipal fixed-rate bonds | 135,773 | 583 | (54 | ) | 136,302 | ||||||||||||||||||||
Municipal variable rate demand notes | 8,310 | — | — | 8,310 | |||||||||||||||||||||
Marketable equity securities | 24,654 | 13,975 | (177 | ) | 38,452 | ||||||||||||||||||||
Available-for-sale securities held at fair value | $ | 347,407 | $ | 17,939 | $ | (300 | ) | $ | 365,046 | ||||||||||||||||
Restricted investment held at cost | 48,250 | ||||||||||||||||||||||||
Other investments held at cost | 1,689 | ||||||||||||||||||||||||
Total carrying value of available-for-sale investments | $ | 414,985 | |||||||||||||||||||||||
At December 31, 2012, we held the following securities and investments, recorded at either fair value or cost: | |||||||||||||||||||||||||
Amortized | Gross Unrealized | Fair Value / | |||||||||||||||||||||||
Cost | Carrying | ||||||||||||||||||||||||
(In thousands) | Gains | Losses | Value | ||||||||||||||||||||||
Deferred compensation plan assets | $ | 10,688 | $ | 846 | $ | (7 | ) | $ | 11,527 | ||||||||||||||||
Corporate bonds | 185,464 | 966 | (18 | ) | 186,412 | ||||||||||||||||||||
Municipal fixed-rate bonds | 174,530 | 627 | (73 | ) | 175,084 | ||||||||||||||||||||
Municipal variable rate demand notes | 34,375 | — | — | 34,375 | |||||||||||||||||||||
Fixed income bond fund | 444 | 12 | — | 456 | |||||||||||||||||||||
Marketable equity securities | 20,966 | 14,630 | (392 | ) | 35,204 | ||||||||||||||||||||
Available-for-sale securities held at fair value | $ | 426,467 | $ | 17,081 | $ | (490 | ) | $ | 443,058 | ||||||||||||||||
Restricted investment held at cost | 48,250 | ||||||||||||||||||||||||
Other investments held at cost | 1,902 | ||||||||||||||||||||||||
Total carrying value of available-for-sale investments | $ | 493,210 | |||||||||||||||||||||||
As of December 31, 2013, corporate and municipal fixed-rate bonds had the following contractual maturities: | |||||||||||||||||||||||||
(In thousands) | Corporate | Municipal | |||||||||||||||||||||||
bonds | fixed-rate bonds | ||||||||||||||||||||||||
Less than one year | $ | 55,396 | $ | 46,606 | |||||||||||||||||||||
One to two years | 37,838 | 25,284 | |||||||||||||||||||||||
Two to three years | 70,447 | 55,358 | |||||||||||||||||||||||
Three to five years | 3,178 | 9,054 | |||||||||||||||||||||||
Total | $ | 166,859 | $ | 136,302 | |||||||||||||||||||||
Our investment policy provides limitations for issuer concentration, which limits, at the time of purchase, the concentration in any one issuer to 5% of the market value of our total investment portfolio. | |||||||||||||||||||||||||
We review our investment portfolio for potential “other-than-temporary” declines in value on an individual investment basis. We assess, on a quarterly basis, significant declines in value which may be considered other-than-temporary and, if necessary, recognize and record the appropriate charge to write-down the carrying value of such investments. In making this assessment, we take into consideration qualitative and quantitative information, including but not limited to the following: the magnitude and duration of historical declines in market prices, credit rating activity, assessments of liquidity, public filings, and statements made by the issuer. We generally begin our identification of potential other-than-temporary impairments by reviewing any security with a fair value that has declined from its original or adjusted cost basis by 25% or more for six or more consecutive months. We then evaluate the individual security based on the previously identified factors to determine the amount of the write-down, if any. As a result of our review, we recorded an other-than-temporary impairment charge of $11 thousand during the fourth quarter of 2013. For each of the years ended December 31, 2013, 2012 and 2011 we recorded a charge of $25 thousand, $0.7 million and $68 thousand, respectively, related to the other-than-temporary impairment of certain marketable equity securities and our deferred compensation plan assets. | |||||||||||||||||||||||||
Realized gains and losses on sales of securities are computed under the specific identification method. The following table presents gross realized gains and losses related to our investments for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||||||||||
Year Ended December 31, | 2013 | 2012 | 2011 | ||||||||||||||||||||||
(In thousands) | |||||||||||||||||||||||||
Gross realized gains | $ | 8,932 | $ | 11,006 | $ | 13,641 | |||||||||||||||||||
Gross realized losses | $ | (318 | ) | $ | (1,456 | ) | $ | (1,187 | ) | ||||||||||||||||
The following table presents the breakdown of investments with unrealized losses at December 31, 2013: | |||||||||||||||||||||||||
(In thousands) | Continuous Unrealized | Continuous Unrealized | Total | ||||||||||||||||||||||
Loss Position for Less | Loss Position for 12 | ||||||||||||||||||||||||
than 12 Months | Months or Greater | ||||||||||||||||||||||||
Fair Value | Unrealized | Fair Value | Unrealized | Fair Value | Unrealized | ||||||||||||||||||||
Losses | Losses | Losses | |||||||||||||||||||||||
Deferred compensation plan assets | $ | 48 | $ | (6 | ) | $ | 409 | $ | (18 | ) | $ | 457 | $ | (24 | ) | ||||||||||
Corporate bonds | 20,697 | (45 | ) | — | — | 20,697 | (45 | ) | |||||||||||||||||
Municipal fixed-rate bonds | 13,733 | (54 | ) | — | — | 13,733 | (54 | ) | |||||||||||||||||
Marketable equity securities | 2,758 | (173 | ) | 31 | (4 | ) | 2,789 | (177 | ) | ||||||||||||||||
Total | $ | 37,236 | $ | (278 | ) | $ | 440 | $ | (22 | ) | $ | 37,676 | $ | (300 | ) | ||||||||||
The following table presents the breakdown of investments with unrealized losses at December 31, 2012. | |||||||||||||||||||||||||
(In thousands) | Continuous Unrealized | Continuous Unrealized | Total | ||||||||||||||||||||||
Loss Position for Less | Loss Position for 12 | ||||||||||||||||||||||||
than 12 Months | Months or Greater | ||||||||||||||||||||||||
Fair Value | Unrealized | Fair Value | Unrealized | Fair Value | Unrealized | ||||||||||||||||||||
Losses | Losses | Losses | |||||||||||||||||||||||
Deferred compensation plan assets | $ | 915 | $ | (7 | ) | $ | — | $ | — | $ | 915 | $ | (7 | ) | |||||||||||
Corporate bonds | 20,204 | (17 | ) | 1,600 | (1 | ) | 21,804 | (18 | ) | ||||||||||||||||
Municipal fixed-rate bonds | 34,297 | (73 | ) | — | — | 34,297 | (73 | ) | |||||||||||||||||
Marketable equity securities | 6,171 | (355 | ) | 230 | (37 | ) | 6,401 | (392 | ) | ||||||||||||||||
Total | $ | 61,587 | $ | (452 | ) | $ | 1,830 | $ | (38 | ) | $ | 63,417 | $ | (490 | ) | ||||||||||
The decrease in unrealized losses during 2013, as reflected in the table above, is primarily due to the restructuring of our investment portfolio relating to marketable equity securities in December 2013 resulting in the sale of several securities in an unrealized loss position. At December 31, 2013, a total of 168 of our marketable equity securities were in an unrealized loss position. | |||||||||||||||||||||||||
We have categorized our cash equivalents held in money market funds and our investments held at fair value into a three-level fair value hierarchy based on the priority of the inputs to the valuation technique for the cash equivalents and investments as follows: Level 1—Values based on unadjusted quoted prices for identical assets or liabilities in an active market; Level 2—Values based on quoted prices in markets that are not active or model inputs that are observable either directly or indirectly; Level 3—Values based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs include information supplied by investees. | |||||||||||||||||||||||||
Fair Value Measurements at December 31, 2013 Using | |||||||||||||||||||||||||
(In thousands) | Fair Value | Quoted Prices | Significant | Significant | |||||||||||||||||||||
in Active | Other | Unobservable | |||||||||||||||||||||||
Markets for | Observable | Inputs | |||||||||||||||||||||||
Identical Assets | Inputs | (Level 3) | |||||||||||||||||||||||
(Level 1) | (Level 2) | ||||||||||||||||||||||||
Cash equivalents | |||||||||||||||||||||||||
Money market funds | $ | 3,949 | $ | 3,949 | $ | — | $ | — | |||||||||||||||||
Available-for-sale securities | |||||||||||||||||||||||||
Deferred compensation plan assets | 15,123 | 15,123 | — | — | |||||||||||||||||||||
Available-for-sale debt securities | |||||||||||||||||||||||||
Corporate bonds | 166,859 | — | 166,859 | — | |||||||||||||||||||||
Municipal fixed-rate bonds | 136,302 | — | 136,302 | — | |||||||||||||||||||||
Municipal variable rate demand notes | 8,310 | — | 8,310 | — | |||||||||||||||||||||
Available-for-sale marketable equity securities | |||||||||||||||||||||||||
Marketable equity securities – technology industry | 11,398 | 11,398 | — | — | |||||||||||||||||||||
Marketable equity securities – other | 27,054 | 27,054 | — | — | |||||||||||||||||||||
Available-for-sale securities | 365,046 | 53,575 | 311,471 | — | |||||||||||||||||||||
Total | $ | 368,995 | $ | 57,524 | $ | 311,471 | $ | — | |||||||||||||||||
Fair Value Measurements at December 31, 2012 Using | |||||||||||||||||||||||||
(In thousands) | Fair Value | Quoted Prices | Significant | Significant | |||||||||||||||||||||
in Active | Other | Unobservable | |||||||||||||||||||||||
Markets for | Observable | Inputs | |||||||||||||||||||||||
Identical Assets | Inputs | (Level 3) | |||||||||||||||||||||||
(Level 1) | (Level 2) | ||||||||||||||||||||||||
Cash equivalents | |||||||||||||||||||||||||
Money market funds | $ | 28,071 | $ | 28,071 | $ | — | $ | — | |||||||||||||||||
Available-for-sale securities | |||||||||||||||||||||||||
Deferred compensation plan assets | 11,527 | 11,527 | — | — | |||||||||||||||||||||
Available-for-sale debt securities | |||||||||||||||||||||||||
Corporate bonds | 186,412 | — | 186,412 | — | |||||||||||||||||||||
Municipal fixed-rate bonds | 175,084 | — | 175,084 | — | |||||||||||||||||||||
Municipal variable rate demand notes | 34,375 | — | 34,375 | — | |||||||||||||||||||||
Fixed income bond fund | 456 | 456 | — | — | |||||||||||||||||||||
Available-for-sale marketable equity securities | |||||||||||||||||||||||||
Marketable equity securities – technology industry | 14,099 | 14,099 | — | — | |||||||||||||||||||||
Marketable equity securities – other | 21,105 | 21,105 | — | — | |||||||||||||||||||||
Available-for-sale securities | 443,058 | 47,187 | 395,871 | — | |||||||||||||||||||||
Total | $ | 471,129 | $ | 75,258 | $ | 395,871 | $ | — | |||||||||||||||||
The fair value of our Level 2 securities is calculated using a weighted average market price for each security. Market prices are obtained from a variety of industry standard data providers, security master files from large financial institutions, and other third-party sources. These multiple market prices are used as inputs into a distribution-curve-based algorithm to determine the daily market value of each security. | |||||||||||||||||||||||||
Our municipal variable rate demand notes have a structure that implies a standard expected market price. The frequent interest rate resets make it reasonable to expect the price to stay at par. These securities are priced at the expected market price. |
Derivative_Instruments_and_Hed
Derivative Instruments and Hedging Activities | 12 Months Ended | ||||||
Dec. 31, 2013 | |||||||
Derivative Instruments And Hedging Activities Disclosure [Abstract] | ' | ||||||
Derivative Instruments and Hedging Activities | ' | ||||||
Note 5 – Derivative Instruments and Hedging Activities | |||||||
We have certain international customers who are billed in their local currency. Changes in the monetary exchange rates may adversely affect our results of operations and financial condition. When appropriate, we enter into various derivative transactions to enhance our ability to manage the volatility relating to these typical business exposures. We do not hold or issue derivative instruments for trading or other speculative purposes. Our derivative instruments are recorded in the Consolidated Balance Sheets at their fair values. Our derivative instruments do not qualify for hedge accounting, and accordingly, all changes in the fair value of the instruments are recognized as other income (expense) in the Consolidated Statements of Income. The maximum contractual period for our derivatives is currently less than twelve months. Our derivative instruments are not subject to master netting arrangements and are not offset in the Consolidated Balance Sheets. | |||||||
As of December 31, 2013, we had forward contracts outstanding with notional amounts totaling €18.5 million ($25.5 million), which mature through 2014. | |||||||
The fair values of our derivative instruments recorded in the Consolidated Balance Sheet as of December 31, 2013 were as follows: | |||||||
December 31, 2013 | |||||||
(In thousands) | Balance Sheet | Fair Value | |||||
Location | |||||||
Derivatives Not Designated as Hedging Instruments (Level 2): | |||||||
Foreign exchange contracts – asset derivatives | Other receivables | $ | 18 | ||||
Foreign exchange contracts – liability derivatives | Accounts payable | $ | (15 | ) | |||
The change in the fair values of our derivative instruments recorded in the Consolidated Statements of Income during the year ended December 31, 2013 were as follows: | |||||||
(In thousands) | Income Statement | 2013 | |||||
Location | |||||||
Derivatives Not Designated as Hedging Instruments: | |||||||
Foreign exchange contracts | Other income (expense) | $ | 750 |
Inventory
Inventory | 12 Months Ended | ||||||||
Dec. 31, 2013 | |||||||||
Inventory Disclosure [Abstract] | ' | ||||||||
Inventory | ' | ||||||||
Note 6 – Inventory | |||||||||
At December 31, 2013 and 2012, inventory was comprised of the following: | |||||||||
(In thousands) | 2013 | 2012 | |||||||
Raw materials | $ | 44,093 | $ | 47,054 | |||||
Work in process | 3,484 | 3,262 | |||||||
Finished goods | 42,534 | 51,061 | |||||||
Total Inventory, net | $ | 90,111 | $ | 101,377 | |||||
We establish reserves for estimated excess, obsolete, or unmarketable inventory equal to the difference between the cost of the inventory and the estimated fair value of the inventory based upon assumptions about future demand and market conditions. At December 31, 2013 and 2012, raw materials reserves totaled $16.9 million and $9.9 million, respectively, and finished goods inventory reserves totaled $6.1 million and $2.1 million, respectively. |
Property_Plant_and_Equipment
Property, Plant and Equipment | 12 Months Ended | ||||||||
Dec. 31, 2013 | |||||||||
Property Plant And Equipment [Abstract] | ' | ||||||||
Property, Plant and Equipment | ' | ||||||||
Note 7 – Property, Plant and Equipment | |||||||||
At December 31, 2013 and 2012, property, plant and equipment were comprised of the following: | |||||||||
(In thousands) | 2013 | 2012 | |||||||
Land | $ | 4,263 | $ | 4,263 | |||||
Building and land improvements | 21,776 | 20,915 | |||||||
Building | 68,479 | 68,479 | |||||||
Furniture and fixtures | 16,465 | 16,631 | |||||||
Computer hardware and software | 70,468 | 68,596 | |||||||
Engineering and other equipment | 104,584 | 99,081 | |||||||
Total Property, Plant and Equipment | 286,035 | 277,965 | |||||||
Less accumulated depreciation | (209,296 | ) | (197,719 | ) | |||||
Total Property, Plant and Equipment, net | $ | 76,739 | $ | 80,246 | |||||
Depreciation expense was $12.2 million, $12.1 million and $10.8 million in 2013, 2012 and 2011, respectively. |
Goodwill_and_Intangible_Assets
Goodwill and Intangible Assets | 12 Months Ended | ||||||||||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||||||||||
Goodwill And Intangible Assets Disclosure [Abstract] | ' | ||||||||||||||||||||||||
Goodwill and Intangible Assets | ' | ||||||||||||||||||||||||
Note 8 – Goodwill and Intangible Assets | |||||||||||||||||||||||||
The changes in the carrying value of goodwill, all of which is included in our Enterprise Networks division, for the year ended December 31, 2013 are as follows: | |||||||||||||||||||||||||
(In thousands) | |||||||||||||||||||||||||
Balance, December 31, 2012 | $ | 3,492 | |||||||||||||||||||||||
Acquisitions | — | ||||||||||||||||||||||||
Impairment losses | — | ||||||||||||||||||||||||
Balance, December 31, 2013 | $ | 3,492 | |||||||||||||||||||||||
Balance as of December 31, 2013: | |||||||||||||||||||||||||
Goodwill | $ | 3,492 | |||||||||||||||||||||||
Accumulated impairment losses | — | ||||||||||||||||||||||||
Total goodwill | $ | 3,492 | |||||||||||||||||||||||
We evaluate the carrying value of goodwill during the fourth quarter of each year and between annual evaluations if events occur or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying amount. When evaluating whether goodwill is impaired, we compare the fair value of the reporting unit to which the goodwill is assigned to the reporting unit’s carrying amount, including goodwill. If the carrying amount of the reporting unit exceeds its fair value, then the amount of the impairment loss is measured. There were no impairment losses recognized during 2013 or 2012. | |||||||||||||||||||||||||
Intangible assets are included in other assets in the accompanying Consolidated Balance Sheets and include intangible assets acquired in conjunction with our acquisition of Objectworld Communications Corporation on September 15, 2009, Bluesocket, Inc. on August 4, 2011, and the NSN BBA business on May 4, 2012. | |||||||||||||||||||||||||
The following table presents our intangible assets as of December 31, 2013 and 2012: | |||||||||||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||||||||||
Gross Value | Accumulated | Net Value | Gross | Accumulated | Net Value | ||||||||||||||||||||
Amortization | Value | Amortization | |||||||||||||||||||||||
Customer relationships | $ | 6,996 | $ | (1,555 | ) | $ | 5,441 | $ | 6,769 | $ | (766 | ) | $ | 6,003 | |||||||||||
Developed technology | 6,537 | (2,692 | ) | 3,845 | 6,397 | (1,354 | ) | 5,043 | |||||||||||||||||
Intellectual property | 2,340 | (1,185 | ) | 1,155 | 2,340 | (851 | ) | 1,489 | |||||||||||||||||
Trade names | 270 | (145 | ) | 125 | 270 | (85 | ) | 185 | |||||||||||||||||
Other | 14 | (8 | ) | 6 | 13 | (3 | ) | 10 | |||||||||||||||||
Total | $ | 16,157 | $ | (5,585 | ) | $ | 10,572 | $ | 15,789 | $ | (3,059 | ) | $ | 12,730 | |||||||||||
Amortization expense was $2.4 million, $2.0 million and $0.7 million in 2013, 2012 and 2011, respectively. | |||||||||||||||||||||||||
As of December 31, 2013, the estimated future amortization expense of intangible assets is as follows: | |||||||||||||||||||||||||
(In thousands) | Amount | ||||||||||||||||||||||||
2014 | $ | 2,335 | |||||||||||||||||||||||
2015 | 2,199 | ||||||||||||||||||||||||
2016 | 1,925 | ||||||||||||||||||||||||
2017 | 1,302 | ||||||||||||||||||||||||
2018 | 784 | ||||||||||||||||||||||||
Thereafter | 2,027 | ||||||||||||||||||||||||
Total | $ | 10,572 | |||||||||||||||||||||||
Alabama_State_Industrial_Devel
Alabama State Industrial Development Authority Financing and Economic Incentives | 12 Months Ended |
Dec. 31, 2013 | |
Text Block [Abstract] | ' |
Alabama State Industrial Development Authority Financing and Economic Incentives | ' |
Note 9 – Alabama State Industrial Development Authority Financing and Economic Incentives | |
In conjunction with an expansion of our Huntsville, Alabama, facility, we were approved for participation in an incentive program offered by the State of Alabama Industrial Development Authority (the “Authority”). Pursuant to the program, on January 13, 1995, the Authority issued $20.0 million of its taxable revenue bonds and loaned the proceeds from the sale of the bonds to ADTRAN. The bonds were originally purchased by AmSouth Bank of Alabama, Birmingham, Alabama (the “Bank”). Wachovia Bank, N.A., Nashville, Tennessee (formerly First Union National Bank of Tennessee) (the “Bondholder”), which was acquired by Wells Fargo & Company on December 31, 2008, purchased the original bonds from the Bank and made further advances to the Authority, bringing the total amount outstanding to $50.0 million. An Amended and Restated Taxable Revenue Bond (“Amended and Restated Bond”) was issued and the original financing agreement was amended. The Amended and Restated Bond bears interest, payable monthly. The interest rate is 5% per annum. The Amended and Restated Bond matures on January 1, 2020. The estimated fair value of the bond using a level 2 valuation technique at December 31, 2013 was approximately $45.4 million, based on a debt security with a comparable interest rate and maturity and a Standard & Poor’s credit rating of A-. We are required to make payments to the Authority in amounts necessary to pay the interest on the Amended and Restated Bond. Included in long-term investments at December 31, 2013 is $48.3 million which is invested in a restricted certificate of deposit. These funds serve as a collateral deposit against the principal of this bond, and we have the right to set-off the balance of the Bond with the collateral deposit in order to reduce the balance of the indebtedness. | |
In conjunction with this program, we are eligible to receive certain economic incentives from the state of Alabama that reduce the amount of payroll withholdings that we are required to remit to the state for those employment positions that qualify under the program. For the years ended December 31, 2013, 2012 and 2011, we realized economic incentives related to payroll withholdings totaling $1.3 million, $1.4 million and $1.9 million, respectively. | |
We did not make a principal payment for the year-ended December 31, 2013. We made a principal payment of $0.5 million for the year ended December 31, 2012. We anticipate making a principal payment in 2014. At December 31, 2013 and 2012, $0.3 million and $0.5 million, respectively, of the bond debt were classified as a current liability in accounts payable in the Consolidated Balance Sheets at December 31, 2013. |
Income_Taxes
Income Taxes | 12 Months Ended | ||||||||||||
Dec. 31, 2013 | |||||||||||||
Income Tax Disclosure [Abstract] | ' | ||||||||||||
Income Taxes | ' | ||||||||||||
Note 10 – Income Taxes | |||||||||||||
A summary of the components of the provision for income taxes for the years ended December 31, 2013, 2012 and 2011 is as follows: | |||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||
Current | |||||||||||||
Federal | $ | 15,641 | $ | 26,225 | $ | 59,382 | |||||||
State | 2,041 | 3,766 | 7,177 | ||||||||||
International | 1,437 | (504 | ) | 431 | |||||||||
Total Current | 19,119 | 29,487 | 66,990 | ||||||||||
Deferred | |||||||||||||
Federal | (3,606 | ) | (3,395 | ) | 527 | ||||||||
State | (412 | ) | (388 | ) | 60 | ||||||||
International | (40 | ) | (2 | ) | (12 | ) | |||||||
Total Deferred | (4,058 | ) | (3,785 | ) | 575 | ||||||||
Total Provision for Income Taxes | $ | 15,061 | $ | 25,702 | $ | 67,565 | |||||||
Our effective income tax rate differs from the federal statutory rate due to the following: | |||||||||||||
2013 | 2012 | 2011 | |||||||||||
Tax provision computed at the federal statutory rate | 35 | % | 35 | % | 35 | % | |||||||
State income tax provision, net of federal benefit | 3.98 | 3.78 | 3.19 | ||||||||||
Federal research credits | (9.24 | ) | — | (2.50 | ) | ||||||||
International | (2.93 | ) | 3.8 | — | |||||||||
Tax-exempt income | (1.11 | ) | (1.01 | ) | (0.27 | ) | |||||||
State tax incentives | (2.19 | ) | (4.46 | ) | (0.90 | ) | |||||||
Stock-based compensation | 2.97 | 2.36 | 0.03 | ||||||||||
Domestic production activity deduction | (1.80 | ) | (3.21 | ) | (1.84 | ) | |||||||
Other, net | 0.07 | (1.03 | ) | 0.07 | |||||||||
Effective Tax Rate | 24.75 | % | 35.23 | % | 32.78 | % | |||||||
Income before provision for income taxes for the years ended December 31, 2013, 2012 and 2011 is as follows: | |||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||
U.S. entities | $ | 51,752 | $ | 80,926 | $ | 204,652 | |||||||
International entities | 9,103 | (7,961 | ) | 1,490 | |||||||||
Total | $ | 60,855 | $ | 72,965 | $ | 206,142 | |||||||
Income before provision for income taxes for international entities reflects income based on statutory transfer pricing agreements. This amount does not correlate to consolidated international revenues, many of which occur from our U.S. entity. | |||||||||||||
Deferred income taxes on the balance sheet result from temporary differences between the amount of assets and liabilities recognized for financial reporting and tax purposes. The principal components of our current and non-current deferred taxes are as follows: | |||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||
Current deferred tax assets | |||||||||||||
Accounts receivable | $ | 51 | $ | 2 | |||||||||
Inventory | 9,877 | 7,507 | |||||||||||
Accrued expenses | 7,155 | 5,546 | |||||||||||
Total Current Deferred Tax Assets | 17,083 | 13,055 | |||||||||||
Non-current deferred tax assets | |||||||||||||
Accrued expenses | 140 | 116 | |||||||||||
Deferred compensation | 5,972 | 4,456 | |||||||||||
Stock-based compensation | 5,331 | 4,569 | |||||||||||
Uncertain tax positions related to state taxes and related interest | 1,107 | 1,005 | |||||||||||
Pensions | 301 | 605 | |||||||||||
Foreign losses | 5,702 | 6,978 | |||||||||||
State losses and credit carry-forwards | 3,737 | 4,349 | |||||||||||
Federal loss and research carry-forwards | 8,322 | 12,210 | |||||||||||
Valuation allowance | (8,842 | ) | (10,939 | ) | |||||||||
Total Non-current Deferred Tax Assets | 21,770 | 23,349 | |||||||||||
Total Deferred Tax Assets | $ | 38,853 | $ | 36,404 | |||||||||
Non-current deferred tax liabilities | |||||||||||||
Property, plant and equipment | $ | (5,499 | ) | $ | (6,405 | ) | |||||||
Intellectual property | (1,006 | ) | (1,839 | ) | |||||||||
Investments | (5,643 | ) | (4,844 | ) | |||||||||
Total Non-current Deferred Tax Liabilities | $ | (12,148 | ) | $ | (13,088 | ) | |||||||
Net Deferred Tax Assets | $ | 26,705 | $ | 23,316 | |||||||||
At December 31, 2013 and 2012, non-current deferred tax liabilities and non-current deferred tax assets, respectively, related to our investments, reflect deferred taxes on unrealized gains and losses on available-for-sale investments. The net change in non-current deferred taxes associated with these investments, a deferred tax expense of $0.4 million in 2013 and a deferred tax benefit of $33 thousand in 2012, is recorded as an adjustment to other comprehensive income, presented in the Consolidated Statements of Comprehensive Income. | |||||||||||||
We have deferred tax assets for foreign and domestic loss carry-forwards, unamortized research and development costs and state credit carry-forwards of $19.0 million which will expire between 2014 and 2030. The foreign loss carry-forwards were generated through the acquisition of a foreign entity in 2009 and through current losses at a foreign subsidiary. The unamortized research and development costs are related to our acquisition of Bluesocket in 2011. The state credit carry-forwards result from tax credits in excess of our annual tax liability to an individual state where we do not generate sufficient state income to offset the credit. We believe it is more likely than not that we will not realize the full benefits of the deferred tax asset arising from these losses and credits in various states and foreign countries, and accordingly, we have provided a valuation allowance against these deferred tax assets. We do not provide for U.S. income tax on undistributed earnings of our foreign operations, whose earnings are intended to be permanently reinvested. These earnings are not required to service debt or fund our U.S. operations. | |||||||||||||
During 2013, 2012 and 2011, we recorded an income tax benefit of $0.2 million, $1.9 million and $10.5 million, respectively, as an adjustment to equity. This deduction is calculated on the difference between the exercise price of stock option exercises and the market price of the underlying common stock upon exercise. | |||||||||||||
The change in the unrecognized income tax benefits for 2013, 2012 and 2011 is reconciled below: | |||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||
Balance at beginning of period | $ | 2,926 | $ | 2,970 | $ | 2,593 | |||||||
Increases for tax position related to: | |||||||||||||
Prior years | 89 | 965 | — | ||||||||||
Current year | 549 | 302 | 840 | ||||||||||
Decreases for tax positions related to: | |||||||||||||
Prior years | — | (49 | ) | (92 | ) | ||||||||
Settlements with taxing authorities | (141 | ) | (507 | ) | (354 | ) | |||||||
Expiration of applicable statute of limitations | (183 | ) | (755 | ) | (17 | ) | |||||||
Balance at end of period | $ | 3,240 | $ | 2,926 | $ | 2,970 | |||||||
As of December 31, 2013, 2012, and 2011, our total liability for unrecognized tax benefits was $3.2 million, $2.9 million, and $3.0 million, respectively, of which $2.5 million, $2.2 million, and $2.4 million, respectively, would reduce our effective tax rate if we were successful in upholding all of the uncertain positions and recognized the amounts recorded. We classify interest and penalties recognized on the liability for unrecognized tax benefits as income tax expense. As of December 31, 2013, 2012 and 2011, the balances of accrued interest and penalties were $1.0 million, $0.8 million and $1.2 million, respectively. | |||||||||||||
We do not anticipate a single tax position generating a significant increase or decrease in our liability for unrecognized tax benefits within 12 months of this reporting date. We file income tax returns in the U.S. federal and various state jurisdictions and several foreign jurisdictions. We have been audited by the Internal Revenue Service and the state of Alabama through the 2009 tax year. Generally, we are not subject to changes in income taxes by any taxing jurisdiction for the years prior to 2010. |
Employee_Benefit_Plans
Employee Benefit Plans | 12 Months Ended | ||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||
Compensation And Retirement Disclosure [Abstract] | ' | ||||||||||||||||
Employee Benefit Plans | ' | ||||||||||||||||
Note 11 – Employee Benefit Plans | |||||||||||||||||
Pension Benefit Plan | |||||||||||||||||
As a result of our acquisition of the NSN BBA business, we assumed a defined benefit pension plan covering employees in certain foreign countries. We established a Contribution Trust Arrangement (CTA) to hold the pension assets, and NSN transferred assets to us equal to the defined benefit obligation as of the May 4, 2012 acquisition date. | |||||||||||||||||
The pension benefit plan obligations and funded status at December 31, 2013 and 2012, are as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Change in projected benefit obligation: | |||||||||||||||||
Projected benefit obligation at beginning of period | $ | (21,181 | ) | $ | — | ||||||||||||
Business combination | — | (18,063 | ) | ||||||||||||||
Service cost | (1,198 | ) | (766 | ) | |||||||||||||
Interest cost | (745 | ) | (494 | ) | |||||||||||||
Actuarial gain (loss) | 779 | (1,862 | ) | ||||||||||||||
Benefit payments | (1 | ) | — | ||||||||||||||
Foreign currency exchange rate changes | (1,008 | ) | 4 | ||||||||||||||
Projected benefit obligation at end of period | $ | (23,354 | ) | $ | (21,181 | ) | |||||||||||
Change in plan assets: | |||||||||||||||||
Fair value of plan assets at beginning of period | $ | 18,620 | $ | — | |||||||||||||
Business combination | — | 18,063 | |||||||||||||||
Actual return on plan assets | 1,281 | 592 | |||||||||||||||
Foreign currency exchange rate changes | 872 | (35 | ) | ||||||||||||||
Fair value of plan assets at end of period | $ | 20,773 | $ | 18,620 | |||||||||||||
Funded status at end of period | $ | (2,581 | ) | $ | (2,561 | ) | |||||||||||
The accumulated benefit obligation was $22.9 million and $20.8 million at December 31, 2013 and 2012, respectively. | |||||||||||||||||
The net amounts recognized in the balance sheet for the unfunded pension liability as of December 31, 2013 and 2012 are as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Current liability | $ | — | $ | (609 | ) | ||||||||||||
Non-current liability | (2,581 | ) | (1,952 | ) | |||||||||||||
Total | $ | (2,581 | ) | $ | (2,561 | ) | |||||||||||
The components of net periodic pension cost and amounts recognized in other comprehensive income for the year ended December 31, 2013 and the period May 4, 2012 to December 31, 2012 are as follows: | |||||||||||||||||
(In thousands) | Year Ended | May 4, 2012 to | |||||||||||||||
December 31, 2013 | December 31, 2012 | ||||||||||||||||
Net periodic benefit cost: | |||||||||||||||||
Service cost | $ | 1,198 | $ | 766 | |||||||||||||
Interest cost | 745 | 494 | |||||||||||||||
Expected return on plan assets | (1,010 | ) | (674 | ) | |||||||||||||
Net periodic benefit cost | 933 | 586 | |||||||||||||||
Other changes in plan assets and benefit obligations recognized in other comprehensive income: | |||||||||||||||||
Net actuarial (gain) loss | (779 | ) | 1,862 | ||||||||||||||
Net unrealized (gain) loss on plan assets | (282 | ) | 90 | ||||||||||||||
Other comprehensive (income) loss | (1,061 | ) | 1,952 | ||||||||||||||
Total recognized in net periodic benefit cost and other comprehensive income | $ | (128 | ) | $ | 2,538 | ||||||||||||
The amounts recognized in accumulated other comprehensive income as of December 31, 2013 and 2012 are as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Net actuarial (gain) loss | $ | 1,083 | $ | 1,862 | |||||||||||||
Net unrealized (gain) loss on plan assets | (192 | ) | 90 | ||||||||||||||
Total | $ | 891 | $ | 1,952 | |||||||||||||
The defined benefit pension plan is accounted for on an actuarial basis, which requires the selection of various assumptions, including an expected rate of return on plan assets and a discount rate. The expected return on our German plan assets that is utilized in determining the benefit obligation and net periodic benefit cost is derived from periodic studies, which include a review of asset allocation strategies, anticipated future long-term performance of individual asset classes, risks using standard deviations and correlations of returns among the asset classes that comprise the plans’ asset mix. While the studies give appropriate consideration to recent plan performance and historical returns, the assumptions are primarily long-term, prospective rates of return. | |||||||||||||||||
Another key assumption in determining net pension expense is the assumed discount rate to be used to discount plan obligations. The discount rate has been derived from the returns of high-quality, corporate bonds denominated in Euro currency with durations close to the duration of our pension obligations. | |||||||||||||||||
The weighted-average assumptions that were used to determine the net periodic benefit cost for the year ended December 31, 2013 and the period May 4, 2012 to December 31, 2012 are as follows: | |||||||||||||||||
Year Ended | May 4, 2012 to | ||||||||||||||||
December 31, 2013 | December 31, 2012 | ||||||||||||||||
Discount rates | 3.5 | % | 3.96 | % | |||||||||||||
Rate of compensation increase | 2.25 | % | 2.25 | % | |||||||||||||
Expected long-term rates of return | 5.4 | % | 5.4 | % | |||||||||||||
The weighted-average assumptions that were used to determine the benefit obligation at December 31, 2013 and 2012: | |||||||||||||||||
2013 | 2012 | ||||||||||||||||
Discount rates | 3.7 | % | 3.5 | % | |||||||||||||
Rate of compensation increase | 2.25 | % | 2.25 | % | |||||||||||||
No amounts will be amortized from accumulated other comprehensive income into net periodic benefit cost during 2014. | |||||||||||||||||
We do not anticipate making a contribution to our pension plan in 2014. The following pension benefit payments, which reflect expected future service, as appropriate, are expected to be paid to participants: | |||||||||||||||||
(In thousands) | |||||||||||||||||
2014 | $ | 357 | |||||||||||||||
2015 | 312 | ||||||||||||||||
2016 | 223 | ||||||||||||||||
2017 | 390 | ||||||||||||||||
2018 | 650 | ||||||||||||||||
2019 – 2023 | 4,427 | ||||||||||||||||
Total | $ | 6,359 | |||||||||||||||
We have categorized our cash equivalents and our investments held at fair value into a three-level fair value hierarchy based on the priority of the inputs to the valuation technique for the cash equivalents and investments as follows: Level 1—Values based on unadjusted quoted prices for identical assets or liabilities in an active market; Level 2—Values based on quoted prices in markets that are not active or model inputs that are observable either directly or indirectly; Level 3—Values based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs include information supplied by investees. | |||||||||||||||||
Fair Value Measurements at December 31, 2013 Using | |||||||||||||||||
(In thousands) | Fair Value | Quoted Prices | Significant | Significant | |||||||||||||
in Active | Other | Unobservable | |||||||||||||||
Markets for | Observable | Inputs | |||||||||||||||
Identical Assets | Inputs | (Level 3) | |||||||||||||||
(Level 1) | (Level 2) | ||||||||||||||||
Cash equivalents | $ | 4 | $ | 4 | $ | — | $ | — | |||||||||
Available-for-sale securities | |||||||||||||||||
Bond funds: | |||||||||||||||||
Corporate bonds | 12,976 | 12,976 | — | — | |||||||||||||
Government bonds | 1,915 | 1,915 | — | — | |||||||||||||
Equity funds: | |||||||||||||||||
Large cap blend | 4,720 | 4,720 | — | — | |||||||||||||
Large cap value | 287 | 287 | — | — | |||||||||||||
Balanced fund | 871 | 871 | — | — | |||||||||||||
Available-for-sale securities | 20,769 | 20,769 | — | — | |||||||||||||
Total | $ | 20,773 | $ | 20,773 | $ | — | $ | — | |||||||||
Fair Value Measurements at December 31, 2012 Using | |||||||||||||||||
(In thousands) | Fair Value | Quoted Prices | Significant | Significant | |||||||||||||
in Active | Other | Unobservable | |||||||||||||||
Markets for | Observable | Inputs | |||||||||||||||
Identical Assets | Inputs | (Level 3) | |||||||||||||||
(Level 1) | (Level 2) | ||||||||||||||||
Cash equivalents | $ | 6 | $ | 6 | $ | — | $ | — | |||||||||
Available-for-sale securities | |||||||||||||||||
Bond funds: | |||||||||||||||||
Corporate bonds | 12,041 | 12,041 | — | — | |||||||||||||
Government bonds | 1,839 | 1,839 | — | — | |||||||||||||
Equity funds: | |||||||||||||||||
Large cap blend | 3,740 | 3,740 | — | — | |||||||||||||
Large cap value | 235 | 235 | — | — | |||||||||||||
Balanced fund | 759 | 759 | — | — | |||||||||||||
Available-for-sale securities | 18,614 | 18,614 | — | — | |||||||||||||
Total | $ | 18,620 | $ | 18,620 | $ | — | $ | — | |||||||||
Our investment policy includes various guidelines and procedures designed to ensure assets are invested in a manner necessary to meet expected future benefits earned by participants. The investments guidelines consider a broad range of economic conditions. Central to the policy are target allocation ranges by asset class, which is currently 75% for bond funds and 25% for equity funds. | |||||||||||||||||
The objectives of the target allocations are to maintain investment portfolios that diversify risk through prudent asset allocation parameters, achieve asset returns that meet or exceed the plans’ actuarial assumptions, and achieve asset returns that are competitive with like institutions employing similar investment strategies. | |||||||||||||||||
The investment policy is periodically reviewed by us and a designated third-party fiduciary for investment matters. The policy is established and administered in a manner that is compliant at all times with applicable government regulations. | |||||||||||||||||
401(k) Savings Plan | |||||||||||||||||
We maintain the ADTRAN, Inc. 401(k) Retirement Plan (Savings Plan) for the benefit of our eligible employees. The Savings Plan is intended to qualify under Sections 401(a) and 401(k) of the Internal Revenue Code of 1986, as amended (Code), and is intended to be a “safe harbor” 401(k) plan under Code Section 401(k)(12). The Savings Plan allows employees to save for retirement by contributing part of their compensation to the plan on a tax-deferred basis. The Savings Plan also requires us to contribute a “safe harbor” amount each year. We match up to 4% of employee contributions (100% of an employee’s first 3% of contributions and 50% of their next 2% of contributions), beginning on the employee’s one year anniversary date. In calculating our matching contribution, we only use compensation up to the statutory maximum under the Code ($255 thousand for 2013). All contributions under the Savings Plan are 100% vested. Expenses recorded for employer contributions and plan administration costs for the Savings Plan amounted to approximately $4.5 million, $4.6 million and $4.3 million in 2013, 2012 and 2011, respectively. | |||||||||||||||||
Deferred Compensation Plans | |||||||||||||||||
We maintain the ADTRAN, Inc. Deferred Compensation Plan (Deferred Compensation Plan). This plan is offered as a supplement to our tax-qualified 401(k) plan and is available to certain executive management employees who have been designated by our Board of Directors. The deferred compensation plan allows participants to defer all or a portion of certain specified bonuses and up to 25% of remaining cash compensation, and permits us to make matching contributions on a discretionary basis, without the limitations that apply to the 401(k) plan. To date, we have not made any matching contributions under this plan. | |||||||||||||||||
We also maintain the ADTRAN, Inc. Equity Deferral Program for Employees for the purpose of providing deferred compensation for certain executive management employees. Participants may elect to defer all or a portion of their vested Performance Share awards to the Plan. Such deferrals shall continue to be held and deemed to be invested in shares of ADTRAN stock unless and until the amounts are distributed or such deferrals are moved to another deemed investment pursuant to an election made by the Participant. | |||||||||||||||||
We have set aside the plan assets for both plans in a rabbi trust (Trust) and all contributions are credited to bookkeeping accounts for the participants. The Trust assets are subject to the claims of our creditors in the event of bankruptcy or insolvency. The assets of the Trust are deemed to be invested in pre-approved mutual funds as directed by each participant, and the participant’s bookkeeping account is credited with the earnings and losses attributable to those investments. Benefits are scheduled to be distributed six months after termination of employment in a single lump sum payment or annual installments paid over a three or ten year term. Distributions will be made on a pro rata basis from each of the hypothetical investments of the Participant’s account in cash. Any whole shares of ADTRAN, Inc. common stock that are distributed will be distributed in-kind. | |||||||||||||||||
Assets of the Trust are deemed invested in mutual funds that cover an investment spectrum ranging from equities to money market instruments. These mutual funds are publicly quoted and reported at fair value. The fair value of the assets held by the Trust and the amounts payable to the plan participants are as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Fair Value of Plan Assets | |||||||||||||||||
Long-term Investments | $ | 15,123 | $ | 11,527 | |||||||||||||
Total Fair Value of Plan Assets | $ | 15,123 | $ | 11,527 | |||||||||||||
Amounts Payable to Plan Participants | |||||||||||||||||
Non-current Liabilities | $ | 15,123 | $ | 11,527 | |||||||||||||
Total Amounts Payable to Plan Participants | $ | 15,123 | $ | 11,527 | |||||||||||||
Interest and dividend income of the Trust have been included in interest and dividend income in the accompanying 2013, 2012 and 2011 Consolidated Statements of Income. Changes in the fair value of the plan assets held by the Trust have been included in accumulated other comprehensive income in the accompanying 2013 and 2012 Consolidated Balance Sheets. Changes in the fair value of the deferred compensation liability are included as selling, general and administrative expense in the accompanying 2013, 2012 and 2011 Consolidated Statements of Income. Based on the changes in the total fair value of the Trust’s assets, we recorded deferred compensation adjustments in 2013, 2012 and 2011 of $2.8 million, $0.9 million and $(0.2) million, respectively. | |||||||||||||||||
Retiree Medical Coverage | |||||||||||||||||
We provide medical, dental and prescription drug coverage to one retired former officer and his spouse, for his life, on the same terms as provided to our active officers, and to the spouse of a former deceased officer for up to 30 years. At December 31, 2013 and 2012, this liability totaled $0.2 million. |
Segment_Information_and_Major_
Segment Information and Major Customers | 12 Months Ended | ||||||||||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||||||||||
Segment Reporting [Abstract] | ' | ||||||||||||||||||||||||
Segment Information and Major Customers | ' | ||||||||||||||||||||||||
Note 12 – Segment Information and Major Customers | |||||||||||||||||||||||||
We operate in two reportable segments: (1) the Carrier Networks Division and (2) the Enterprise Networks Division. The accounting policies of the segments are the same as those described in the “Nature of Business and Summary of Significant Accounting Policies” (see Note 1) to the extent that such policies affect the reported segment information. We evaluate the performance of our segments based on gross profit; therefore, selling, general and administrative expense, research and development expenses, interest income and dividend income, interest expense, net realized investment gain/loss, other income/expense and provision for taxes are reported on an entity-wide basis only. There are no inter-segment revenues. | |||||||||||||||||||||||||
The following table presents information about the reported sales and gross profit of our reportable segments for each of the years ended December 31, 2013, 2012 and 2011. Asset information by reportable segment is not reported, since we do not produce such information internally. | |||||||||||||||||||||||||
Sales and Gross Profit by Market Segment | |||||||||||||||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||||||||||||||
Sales | Gross Profit | Sales | Gross Profit | Sales | Gross Profit | ||||||||||||||||||||
Carrier Networks | $ | 500,733 | $ | 233,206 | $ | 492,096 | $ | 247,380 | $ | 569,579 | $ | 327,813 | |||||||||||||
Enterprise Networks | 141,011 | 75,680 | 128,518 | 69,263 | 147,650 | 86,505 | |||||||||||||||||||
Total | $ | 641,744 | $ | 308,886 | $ | 620,614 | $ | 316,643 | $ | 717,229 | $ | 414,318 | |||||||||||||
Sales by Product | |||||||||||||||||||||||||
Our three major product categories are Carrier Systems, Business Networking and Loop Access. | |||||||||||||||||||||||||
Carrier Systems products are used by communications service providers to provide data, voice and video services to consumers and enterprises. This category includes the following product areas and related services: | |||||||||||||||||||||||||
• | Broadband Access | ||||||||||||||||||||||||
• | Total Access® 5000 Multi-Service Access Node (MSAN) | ||||||||||||||||||||||||
• | hiX family of MSANs | ||||||||||||||||||||||||
• | Total Access 1100/1200 Series of Fiber to the Node (FTTN) products | ||||||||||||||||||||||||
• | Ultra Broadband Ethernet (UBE) | ||||||||||||||||||||||||
• | Digital Subscriber Line Access Multiplexer (DSLAM) products | ||||||||||||||||||||||||
• | Optical | ||||||||||||||||||||||||
• | Optical Networking Edge (ONE) | ||||||||||||||||||||||||
• | NetVanta 8000 Series of Fiber Ethernet Access Devices (EAD) | ||||||||||||||||||||||||
• | OPTI-6100 and Total Access 3000 optical Multi-Service Provisioning Platforms (MSPP) | ||||||||||||||||||||||||
• | Pluggable Optical Products, including SFP, XFP, and SFP+ | ||||||||||||||||||||||||
• | TDM systems | ||||||||||||||||||||||||
Business Networking products provide access to communication services and facilitate the delivery of cloud connectivity and enterprise communications to the small and mid-sized enterprise (SME) market. This category includes the following product areas and related services: | |||||||||||||||||||||||||
• | Internetworking products | ||||||||||||||||||||||||
• | Total Access IP Business Gateways | ||||||||||||||||||||||||
• | Optical Network Terminals (ONTs) | ||||||||||||||||||||||||
• | Bluesocket® virtual Wireless LAN (vWLAN®) | ||||||||||||||||||||||||
• | NetVanta® | ||||||||||||||||||||||||
• | Multiservice Routers | ||||||||||||||||||||||||
• | Managed Ethernet Switches | ||||||||||||||||||||||||
• | IP Business Gateways | ||||||||||||||||||||||||
• | Unified Communications (UC) solutions | ||||||||||||||||||||||||
• | Carrier Ethernet Network Terminating Equipment (NTE) | ||||||||||||||||||||||||
• | Network Management Solutions | ||||||||||||||||||||||||
• | Integrated Access Devices (IADs) | ||||||||||||||||||||||||
Loop Access products are used by carrier and enterprise customers for access to copper-based communications networks. The Loop Access category includes the following product areas and related services: | |||||||||||||||||||||||||
• | High bit-rate Digital Subscriber Line (HDSL) products | ||||||||||||||||||||||||
• | Digital Data Service (DDS) | ||||||||||||||||||||||||
• | Integrated Services Digital Network (ISDN) products | ||||||||||||||||||||||||
• | T1/E1/T3 Channel Service Units/Data Service Units (CSUs/DSUs) | ||||||||||||||||||||||||
• | TRACER fixed-wireless products | ||||||||||||||||||||||||
The table below presents sales information by product category for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||||||||||||||
Carrier Systems | $ | 427,850 | $ | 399,646 | $ | 420,289 | |||||||||||||||||||
Business Networking | 168,871 | 149,304 | 162,186 | ||||||||||||||||||||||
Loop Access | 45,023 | 71,664 | 134,754 | ||||||||||||||||||||||
Total | $ | 641,744 | $ | 620,614 | $ | 717,229 | |||||||||||||||||||
In addition, we identify subcategories of product revenues, which we divide into core products and legacy products. Our core products consist of Broadband Access and Optical products (included in Carrier Systems), and Internetworking products (included in Business Networking). Our legacy products include HDSL products (included in Loop Access) and other products not included in the aforementioned core products. | |||||||||||||||||||||||||
The table below presents subcategory revenues for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||||||||||||||
Core Products | |||||||||||||||||||||||||
Broadband Access (included in Carrier Systems) | $ | 340,560 | $ | 320,076 | $ | 289,776 | |||||||||||||||||||
Optical (included in Carrier Systems) | 55,615 | 51,755 | 82,535 | ||||||||||||||||||||||
Internetworking (NetVanta® & Multi-service Access Gateways) (included in Business Networking) | 164,422 | 142,958 | 151,536 | ||||||||||||||||||||||
Subtotal | $ | 560,597 | $ | 514,789 | $ | 523,847 | |||||||||||||||||||
Legacy Products | |||||||||||||||||||||||||
HDSL (does not include T1) (included in Loop Access) | 41,666 | 66,974 | 126,976 | ||||||||||||||||||||||
Other products (excluding HDSL) | 39,481 | 38,851 | 66,406 | ||||||||||||||||||||||
Subtotal | $ | 81,147 | $ | 105,825 | $ | 193,382 | |||||||||||||||||||
Total | $ | 641,744 | $ | 620,614 | $ | 717,229 | |||||||||||||||||||
The following table presents sales information by geographic area for the years ended December 31, 2013, 2012 and 2011. International sales correlate to shipments with a non-U.S. destination. | |||||||||||||||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||||||||||||||
United States | $ | 455,996 | $ | 470,369 | $ | 632,795 | |||||||||||||||||||
Germany | 97,151 | 26,918 | 554 | ||||||||||||||||||||||
Other international | 88,597 | 123,327 | 83,880 | ||||||||||||||||||||||
Total | $ | 641,744 | $ | 620,614 | $ | 717,229 | |||||||||||||||||||
Customers comprising more than 10% of revenue can change from year to year. Single customers comprising more than 10% of our revenue in 2013 included two customers at 17% and 14%, respectively. Only a single customer comprised more than 10% of our revenue in 2012 at 23%. Single customers comprising more than 10% of our revenue in 2011 included two customers at 25% and 10%, respectively. No other customer accounted for 10% or more of our sales in 2013, 2012 or 2011. Our five largest customers, other than those with more than 10 percent of revenues disclosed above, can change from year to year. These customers represented 22%, 34% and 29% of total revenue in 2013, 2012 and 2011, respectively. Revenues in this disclosure do not include distributor agents who predominately provide fulfillment services to end users. In such cases where known, that revenue is associated with the end user. | |||||||||||||||||||||||||
As of December 31, 2013, long-lived assets, net totaled $76.7 million, which includes $71.2 million held in the United States and $5.5 million held outside the United States. As of December 31, 2012, long-lived assets, net totaled $80.2 million, which includes $73.9 million held in the United States and $6.3 million held outside the United States. |
Commitments_and_Contingencies
Commitments and Contingencies | 12 Months Ended | ||||
Dec. 31, 2013 | |||||
Commitments And Contingencies Disclosure [Abstract] | ' | ||||
Commitments and Contingencies | ' | ||||
Note 13 – Commitments and Contingencies | |||||
In the ordinary course of business, we may be subject to various legal proceedings and claims, including employment disputes, patent claims, disputes over contract agreements and other commercial disputes. In some cases, claimants seek damages or other relief, such as royalty payments related to patents, which, if granted, could require significant expenditures. Although the outcome of any claim or litigation can never be certain, it is our opinion that the outcome of all contingencies of which we are currently aware will not materially affect our business, operations, financial condition or cash flows. | |||||
We lease office space and equipment under operating leases which expire at various dates through 2018. As of December 31, 2013, future minimum rental payments under non-cancelable operating leases with original maturities of greater than 12 months are approximately as follows: | |||||
(In thousands) | |||||
2014 | $ | 4,523 | |||
2015 | 3,556 | ||||
2016 | 2,506 | ||||
2017 | 2,156 | ||||
Thereafter | 686 | ||||
Total | $ | 13,427 | |||
Rental expense was approximately $4.8 million, $3.9 million and $2.4 million for the years ended December 31, 2013, 2012 and 2011, respectively. |
Earnings_Per_Share
Earnings Per Share | 12 Months Ended | ||||||||||||
Dec. 31, 2013 | |||||||||||||
Earnings Per Share [Abstract] | ' | ||||||||||||
Earnings Per Share | ' | ||||||||||||
Note 14 – Earnings per Share | |||||||||||||
A summary of the calculation of basic and diluted earnings per share (EPS) for the years ended December 31, 2013, 2012 and 2011 is as follows: | |||||||||||||
(In thousands, except for per share amounts) | 2013 | 2012 | 2011 | ||||||||||
Numerator | |||||||||||||
Net Income | $ | 45,794 | $ | 47,263 | $ | 138,577 | |||||||
Denominator | |||||||||||||
Weighted average number of shares – basic | 59,001 | 63,259 | 64,145 | ||||||||||
Effect of dilutive securities: | |||||||||||||
Stock options | 390 | 488 | 1,236 | ||||||||||
Restricted stock and restricted stock units | 33 | 27 | 35 | ||||||||||
Weighted average number of shares – diluted | 59,424 | 63,774 | 65,416 | ||||||||||
Net income per share – basic | $ | 0.78 | $ | 0.75 | $ | 2.16 | |||||||
Net income per share – diluted | $ | 0.77 | $ | 0.74 | $ | 2.12 | |||||||
For each of the years ended December 31, 2013, 2012 and 2011, 3.2 million, 3.2 million and 1.2 million stock options were outstanding but were not included in the computation of that year’s diluted EPS because the options’ exercise prices were greater than the average market price of the common shares, therefore making them anti-dilutive under the treasury stock method. |
Summarized_Quarterly_Financial
Summarized Quarterly Financial Data (Unaudited) | 12 Months Ended | ||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||
Quarterly Financial Information Disclosure [Abstract] | ' | ||||||||||||||||
Summarized Quarterly Financial Data (Unaudited) | ' | ||||||||||||||||
Note 15 – Summarized Quarterly Financial Data (Unaudited) | |||||||||||||||||
The following table presents unaudited quarterly operating results for each of our last eight fiscal quarters. This information has been prepared on a basis consistent with our audited financial statements and includes all adjustments, consisting only of normal recurring adjustments, considered necessary for a fair presentation of the data. | |||||||||||||||||
Unaudited Quarterly Operating Results | |||||||||||||||||
(In thousands, except for per share amounts) | |||||||||||||||||
Three Months Ended | March 31, 2013 | June 30, 2013 | September 30, 2013 | December 31, 2013 | |||||||||||||
Net sales | $ | 143,013 | $ | 162,233 | $ | 177,404 | $ | 159,094 | |||||||||
Gross profit | $ | 69,677 | $ | 79,798 | $ | 82,547 | $ | 76,864 | |||||||||
Operating income | $ | 6,563 | $ | 14,053 | $ | 17,210 | $ | 10,639 | |||||||||
Net income | $ | 7,890 | $ | 9,859 | $ | 16,205 | $ | 11,840 | |||||||||
Earnings per common share | $ | 0.13 | $ | 0.17 | $ | 0.28 | $ | 0.21 | |||||||||
Earnings per common share assuming dilution (1) | $ | 0.13 | $ | 0.17 | $ | 0.28 | $ | 0.2 | |||||||||
Three Months Ended | 31-Mar-12 | 30-Jun-12 | 30-Sep-12 | 31-Dec-12 | |||||||||||||
Net sales | $ | 134,735 | $ | 183,998 | $ | 162,125 | $ | 139,756 | |||||||||
Gross profit | $ | 74,087 | $ | 95,201 | $ | 79,972 | $ | 67,383 | |||||||||
Operating income | $ | 16,181 | $ | 26,838 | $ | 10,276 | $ | 2,874 | |||||||||
Net income | $ | 12,960 | $ | 21,070 | $ | 9,272 | $ | 3,961 | |||||||||
Earnings per common share | $ | 0.2 | $ | 0.33 | $ | 0.15 | $ | 0.06 | |||||||||
Earnings per common share assuming dilution (1) | $ | 0.2 | $ | 0.33 | $ | 0.15 | $ | 0.06 | |||||||||
(1) | Assumes exercise of dilutive stock options calculated under the treasury stock method. |
Related_Party_Transactions
Related Party Transactions | 12 Months Ended |
Dec. 31, 2013 | |
Related Party Transactions [Abstract] | ' |
Related Party Transactions | ' |
Note 16 – Related Party Transactions | |
We employ the law firm of our director emeritus for legal services. All bills for services rendered by this firm are reviewed and approved by our Chief Financial Officer. We believe that the fees for such services are comparable to those charged by other firms for services rendered to us. For the years ended 2013, 2012 and 2011, we incurred fees of $10 thousand per month for these legal services. |
Subsequent_Events
Subsequent Events | 12 Months Ended |
Dec. 31, 2013 | |
Subsequent Events [Abstract] | ' |
Subsequent Events | ' |
Note 17 – Subsequent Events | |
On January 21, 2014, the Board declared a quarterly cash dividend of $0.09 per common share to be paid to shareholders of record at the close of business on February 6, 2014. The quarterly dividend payment was $5.1 million and was paid on February 20, 2014. In July 2003, our Board of Directors elected to begin declaring quarterly dividends on our common stock considering the tax treatment of dividends and adequate levels of Company liquidity. | |
In February 2014, we made a decision to make a $16.5 million principal payment on the Amended and Restated Bond. The restricted certificate of deposit included in our long-term investments will be reduced by the amount of the payment. We anticipate this payment will be made during the first quarter of 2014. | |
As of February 27, 2014, we have repurchased 0.4 million shares of our common stock through open market purchases at an average cost of $25.13 per share. We currently have the authority to purchase an additional 3.1 million shares of our common stock under the current plan approved by the Board of Directors. |
Schedule_II_Valuation_and_Qual
Schedule II - Valuation and Qualifying Accounts | 12 Months Ended | ||||||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||||||
Valuation And Qualifying Accounts [Abstract] | ' | ||||||||||||||||||||
Schedule II - Valuation and Qualifying Accounts | ' | ||||||||||||||||||||
SCHEDULE II | |||||||||||||||||||||
VALUATION AND QUALIFYING ACCOUNTS | |||||||||||||||||||||
Column A | Column B | Column C | Column D | Column E | Column F | ||||||||||||||||
(In thousands) | Balance at | Assumed | Charged to | Deductions | Balance at | ||||||||||||||||
Beginning | on | Costs & | End of | ||||||||||||||||||
of Period | Acquisition | Expenses | Period | ||||||||||||||||||
Year ended December 31, 2013 | |||||||||||||||||||||
Allowance for Doubtful Accounts | $ | 6 | — | 136 | 12 | $ | 130 | ||||||||||||||
Inventory Reserve | $ | 11,957 | — | 11,457 | 421 | $ | 22,993 | ||||||||||||||
Warranty Liability | $ | 9,653 | — | 4,051 | 4,727 | $ | 8,977 | ||||||||||||||
Deferred Tax Asset Valuation Allowance | $ | 10,939 | — | (1,056 | ) | 1,041 | $ | 8,842 | |||||||||||||
Year ended December 31, 2012 | |||||||||||||||||||||
Allowance for Doubtful Accounts | $ | 8 | — | 38 | 40 | $ | 6 | ||||||||||||||
Inventory Reserve | $ | 9,419 | — | 3,042 | 504 | $ | 11,957 | ||||||||||||||
Warranty Liability | $ | 4,118 | 3,781 | 5,363 | 3,609 | $ | 9,653 | ||||||||||||||
Deferred Tax Asset Valuation Allowance | $ | 7,585 | — | 3,594 | 240 | $ | 10,939 | ||||||||||||||
Year ended December 31, 2011 | |||||||||||||||||||||
Allowance for Doubtful Accounts | $ | 162 | — | 117 | 271 | $ | 8 | ||||||||||||||
Inventory Reserve | $ | 8,932 | — | 1,137 | 650 | $ | 9,419 | ||||||||||||||
Warranty Liability | $ | 3,304 | 33 | 2,860 | 2,079 | $ | 4,118 | ||||||||||||||
Deferred Tax Asset Valuation Allowance | $ | 5,627 | 1,462 | 496 | — | $ | 7,585 |
Nature_of_Business_and_Summary1
Nature of Business and Summary of Significant Accounting Policies (Policies) | 12 Months Ended | ||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||
Accounting Policies [Abstract] | ' | ||||||||||||||||
Principles of Consolidation | ' | ||||||||||||||||
Principles of Consolidation | |||||||||||||||||
Our consolidated financial statements include ADTRAN and its wholly owned subsidiaries. All inter-company accounts and transactions have been eliminated in consolidation. | |||||||||||||||||
Changes in Classifications | ' | ||||||||||||||||
Changes in Classifications | |||||||||||||||||
Certain balance sheet amounts (including inventory, accounts receivable, unearned revenue and accrued expenses) and related disclosures have been revised to correct immaterial misclassifications in 2012 that were corrected in 2013. The revisions decreased both total assets and total liabilities each by $2.7 million at December 31, 2012. The revisions had no impact on our previously reported stockholders’ equity, income statement, comprehensive income, or earnings per share. Additionally, we corrected immaterial misclassifications between the operating and investing sections of our consolidated statements of cash flows and adjusted our 2012 and 2011 cash flows in these categories by $0.2 million and $0.1 million, respectively, in order to be consistent with the 2013 presentation. | |||||||||||||||||
Additionally, changes in classifications have been made to the prior period balances in other comprehensive income to conform to the current period’s presentation as a result of our adoption of Accounting Standards Update No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Comprehensive Income. | |||||||||||||||||
Out of Period Adjustment | ' | ||||||||||||||||
Out of Period Adjustment | |||||||||||||||||
During the year ended December 31, 2013, we identified two adjustments in the acquired NSN (formerly Nokia Siemens Networks) Broadband Access business (NSN BBA business) relating to customer payment discounts for one customer, and recoverable VAT taxes on certain vendor freight invoices that should have been recorded in prior periods. These adjustments resulted from a $0.4 million understatement of net income in 2012. We evaluated the impact of the adjustments on the results of our previously issued financial statements for the prior period affected and concluded that the impact was not material. We also evaluated the impact of the cumulative effect of the adjustments in the current year and concluded that the impact was not material to our results for the year 2013. Accordingly, during the year ended December 31, 2013 we recorded an out of period adjustment to correct these issues. | |||||||||||||||||
Use of Estimates | ' | ||||||||||||||||
Use of Estimates | |||||||||||||||||
The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenue and expense during the reporting period. Our more significant estimates include the obsolete and excess inventory reserves, warranty reserves, customer rebates, determination of the deferred revenue components of multiple element sales agreements, estimated costs to complete obligations associated with deferred revenues, estimated income tax provision and income tax contingencies, the fair value of stock-based compensation, impairment of goodwill, valuation and estimated lives of intangible assets, estimated working capital adjustments under negotiation related to the NSN BBA business acquisition, estimated pension liability, fair value of investments, and the evaluation of other-than-temporary declines in the value of investments. Actual amounts could differ significantly from these estimates. | |||||||||||||||||
Cash and Cash Equivalents | ' | ||||||||||||||||
Cash and Cash Equivalents | |||||||||||||||||
Cash and cash equivalents represent demand deposits, money market funds, and short-term investments classified as available-for-sale with original maturities of three months or less. We maintain depository investments with certain financial institutions. Although these depository investments may exceed government insured depository limits, we have evaluated the credit worthiness of these applicable financial institutions, and determined the risk of material financial loss due to the exposure of such credit risk to be minimal. As of December 31, 2013, $53.5 million of our cash and cash equivalents, primarily certain domestic money market funds and foreign depository accounts, were in excess of government provided insured depository limits. | |||||||||||||||||
Financial Instruments | ' | ||||||||||||||||
Financial Instruments | |||||||||||||||||
The carrying amounts reported in the consolidated balance sheets for cash and cash equivalents, accounts receivable, and accounts payable approximate fair value due to the immediate or short-term maturity of these financial instruments. The carrying amount reported for bonds payable was $46.5 million, compared to an estimated fair value of $45.4 million, based on a debt security with a comparable interest rate and maturity and a Standard & Poor’s credit rating of A-. | |||||||||||||||||
Investments with contractual maturities beyond one year, such as our municipal variable rate demand notes, may be classified as short-term based on their highly liquid nature and because such marketable securities represent the investment of cash that is available for current operations. Despite the long-term nature of their stated contractual maturities, we routinely buy and sell these securities and we believe we have the ability to quickly sell them to the remarketing agent, tender agent, or issuer at par value plus accrued interest in the event we decide to liquidate our investment in a particular variable rate demand note. All income generated from these investments was recorded as interest income. We have not been required to record any losses relating to municipal variable rate demand notes. | |||||||||||||||||
Long-term investments represent a restricted certificate of deposit held at cost, municipal fixed-rate bonds, corporate bonds, a fixed income bond fund, marketable equity securities, and other equity investments. Marketable equity securities are reported at fair value as determined by the most recently traded price of the securities at the balance sheet date, although the securities may not be readily marketable due to the size of the available market. Unrealized gains and losses, net of tax, are reported as a separate component of stockholders’ equity. Realized gains and losses on sales of securities are computed under the specific identification method and are included in current income. We periodically review our investment portfolio for investments considered to have sustained an other-than-temporary decline in value. Impairment charges for other-than-temporary declines in value are recorded as realized losses in the accompanying consolidated statements of income. All of our investments at December 31, 2013 and 2012 are classified as available-for-sale securities. See Note 4 of Notes to Consolidated Financial Statements for additional information. | |||||||||||||||||
Accounts Receivable | ' | ||||||||||||||||
Accounts Receivable | |||||||||||||||||
We record accounts receivable at net realizable value. Prior to issuing payment terms to a new customer, we perform a detailed credit review of the customer. Credit limits are established for each new customer based on the results of this credit review. Payment terms are established for each new customer, and collection experience is reviewed periodically in order to determine if the customer’s payment terms and credit limits need to be revised. At December 31, 2013, one customer accounted for 13.1% of our total accounts receivable. At December 31, 2012, one customer accounted for 10.4% of our total accounts receivable. | |||||||||||||||||
We maintain an allowance for doubtful accounts for losses resulting from the inability of our customers to make required payments. We regularly review the allowance for doubtful accounts and consider factors such as the age of accounts receivable balances, the current economic conditions that may affect a customer’s ability to pay, significant one-time events and our historical experience. If the financial condition of a customer deteriorates, resulting in an impairment of their ability to make payments, we may be required to record an allowance for doubtful accounts. If circumstances change with regard to individual receivable balances that have previously been determined to be uncollectible (and for which a specific reserve has been established), a reduction in our allowance for doubtful accounts may be required. Our allowance for doubtful accounts was $130 thousand at December 31, 2013 and $6 thousand at December 31, 2012. | |||||||||||||||||
Other Receivables | ' | ||||||||||||||||
Other Receivables | |||||||||||||||||
Other receivables are comprised primarily of amounts due from subcontract manufacturers for product component transfers, accrued interest on investments and on a restricted certificate of deposit, and amounts due from employee stock option exercises. At December 31, 2013 and 2012, other receivables also included an estimated receivable due from NSN related to working capital adjustments that are currently under negotiation. | |||||||||||||||||
Inventory | ' | ||||||||||||||||
Inventory | |||||||||||||||||
Inventory is carried at the lower of cost or market, with cost being determined using the first-in, first-out method. Standard costs for material, labor and manufacturing overhead are used to value inventory. Standard costs are updated at least quarterly; therefore, inventory costs approximate actual costs at the end of each reporting period. We establish reserves for estimated excess, obsolete or unmarketable inventory equal to the difference between the cost of the inventory and the estimated fair value of the inventory based upon assumptions about future demand and market conditions. When we dispose of excess and obsolete inventories, the related write-downs are charged against the inventory reserve. See Note 6 of Notes to Consolidated Financial Statements for additional information. | |||||||||||||||||
Property, Plant and Equipment | ' | ||||||||||||||||
Property, Plant and Equipment | |||||||||||||||||
Property, plant and equipment, which is stated at cost, is depreciated using the straight-line method over the estimated useful lives of the assets. We depreciate building and land improvements from five to 39 years, office machinery and equipment from three to seven years, engineering machinery and equipment from three to seven years, and computer software from three to five years. Expenditures for repairs and maintenance are charged to expense as incurred. Betterments that materially prolong the lives of the assets are capitalized. The cost of assets retired or otherwise disposed of and the related accumulated depreciation are removed from the accounts, and the gain or loss on such disposition is included in other income (expense), net in the accompanying consolidated statements of income. See Note 7 of Notes to Consolidated Financial Statements for additional information. | |||||||||||||||||
Liability for Warranty | ' | ||||||||||||||||
Liability for Warranty | |||||||||||||||||
Our products generally include warranties of 90 days to ten years for product defects. We accrue for warranty returns at the time revenue is recognized based on our estimate of the cost to repair or replace the defective products. We engage in extensive product quality programs and processes, including actively monitoring and evaluating the quality of our component suppliers. Our products continue to become more complex in both size and functionality as many of our product offerings migrate from line card applications to systems products. The increasing complexity of our products will cause warranty incidences, when they arise, to be more costly. Our estimates regarding future warranty obligations may change due to product failure rates, material usage, and other rework costs incurred in correcting a product failure. In addition, from time to time, specific warranty accruals may be recorded if unforeseen problems arise. Should our actual experience relative to these factors be worse than our estimates, we will be required to record additional warranty expense. Alternatively, if we provide for more reserves than we require, we will reverse a portion of such provisions in future periods. The liability for warranty obligations totaled $9.0 million and $9.7 million at December 31, 2013 and 2012, respectively. These liabilities are included in accrued expenses in the accompanying consolidated balance sheets. | |||||||||||||||||
A summary of warranty expense and write-off activity for the years ended December 31, 2013 and 2012 is as follows: | |||||||||||||||||
Year Ended December 31, | 2013 | 2012 | |||||||||||||||
(In thousands) | |||||||||||||||||
Balance at beginning of period | $ | 9,653 | $ | 4,118 | |||||||||||||
Plus: Amounts charged to cost and expenses | 4,051 | 5,363 | |||||||||||||||
Amounts assumed on acquisition | — | 3,781 | |||||||||||||||
Less: Deductions | (4,727 | ) | (3,609 | ) | |||||||||||||
Balance at end of period | $ | 8,977 | $ | 9,653 | |||||||||||||
Pension Benefit Plan Obligations | ' | ||||||||||||||||
Pension Benefit Plan Obligations | |||||||||||||||||
As a result of our acquisition of the NSN BBA business, we assumed a defined benefit pension plan covering employees in certain foreign countries. Pension benefit plan obligations are based on various assumptions used by our actuaries in calculating these amounts. These assumptions include discount rates, compensation rate increases, expected return on plan assets, retirement rates and mortality rates. Actual results that differ from the assumptions and changes in assumptions could affect future expenses and obligations. | |||||||||||||||||
Stock-Based Compensation | ' | ||||||||||||||||
Stock-Based Compensation | |||||||||||||||||
We have two Board and stockholder approved stock option plans from which stock options and other awards are available for grant to employees and directors. All employee and director stock options granted under our stock option plans have an exercise price equal to the fair market value of the award, as defined in the plan, of the underlying common stock on the grant date. There are currently no vesting provisions tied to performance or market conditions for any option awards; vesting for all outstanding option grants is based only on continued service as an employee or director of ADTRAN. All of our outstanding stock option awards are classified as equity awards. | |||||||||||||||||
Under the provisions of our approved plans, we made grants of performance-based restricted stock units to five of our executive officers in 2013, 2012 and 2011. The restricted stock units are subject to a market condition based on the relative total shareholder return of ADTRAN against all the companies in the NASDAQ Telecommunications Index and vest at the end of a three-year performance period. The restricted stock units are converted into shares of common stock upon vesting. Depending on the relative total shareholder return over the performance period, the executive officers may earn from 0% to 150% of the number of restricted stock units granted. The fair value of the award is based on the market price of our common stock on the date of grant, adjusted for the expected outcome of the impact of market conditions using a Monte Carlo Simulation valuation method. The recipients of the restricted stock units also earn dividend credits during the performance period, which will be paid in cash upon the issuance of common stock for the restricted stock units. | |||||||||||||||||
Stock-based compensation expense recognized in 2013, 2012 and 2011 was approximately $9.1 million, $9.3 million and $9.2 million, respectively. As of December 31, 2013, total compensation cost related to non-vested stock options, restricted stock units and restricted stock not yet recognized was approximately $18.8 million, which is expected to be recognized over an average remaining recognition period of 2.7 years. See Note 3 of Notes to Consolidated Financial Statements for additional information. | |||||||||||||||||
Impairment of Long-Lived Assets | ' | ||||||||||||||||
Impairment of Long-Lived Assets | |||||||||||||||||
We review long-lived assets used in operations for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable and the undiscounted cash flows estimated to be generated by the asset are less than the asset’s carrying value. An impairment loss would be recognized in the amount by which the recorded value of the asset exceeds the fair value of the asset, measured by the quoted market price of an asset or an estimate based on the best information available in the circumstances. There were no impairment losses recognized during 2013, 2012 or 2011. | |||||||||||||||||
Goodwill and Purchased Intangible Assets | ' | ||||||||||||||||
Goodwill and Purchased Intangible Assets | |||||||||||||||||
We evaluate the carrying value of goodwill during the fourth quarter of each year and between annual evaluations if events occur or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying amount. When evaluating whether goodwill is impaired, we first assess qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. If we determine that the two-step quantitative test is necessary, then we compare the fair value of the reporting unit to which the goodwill is assigned to the reporting unit’s carrying amount, including goodwill. If the carrying amount of the reporting unit exceeds its fair value, then the amount of the impairment loss is measured. There were no impairment losses recognized during 2013, 2012 or 2011. Purchased intangible assets with finite lives are carried at cost, less accumulated amortization. Amortization is recorded over the estimated useful lives of the respective assets, which is 2.5 to 14 years. | |||||||||||||||||
Research and Development Costs | ' | ||||||||||||||||
Research and Development Costs | |||||||||||||||||
Research and development costs include compensation for engineers and support personnel, outside contracted services, depreciation and material costs associated with new product development, the enhancement of current products, and product cost reductions. We continually evaluate new product opportunities and engage in intensive research and product development efforts. Research and development costs totaled $131.1 million, $126.0 million and $100.3 million for the years ended December 31, 2013, 2012 and 2011, respectively. | |||||||||||||||||
Other Comprehensive Income | ' | ||||||||||||||||
Other Comprehensive Income | |||||||||||||||||
Other comprehensive income consists of unrealized gains (losses) on available-for-sale securities, reclassification adjustments for amounts included in net income related to impairments of available-for-sale securities and realized gains (losses) on available-for-sale securities, defined benefit plan adjustments and foreign currency translation adjustments. | |||||||||||||||||
The following tables present changes in accumulated other comprehensive income, net of tax, by component for the years ended December 31, 2011, 2012 and 2013: | |||||||||||||||||
(In thousands) | Unrealized | Defined | Foreign | Total | |||||||||||||
Gains (Losses) | Benefit Plan | Currency | |||||||||||||||
on Available- | Adjustments | Adjustments | |||||||||||||||
for-Sale | |||||||||||||||||
Securities | |||||||||||||||||
Balance at December 31, 2010 | $ | 23,852 | $ | — | $ | 3,096 | $ | 26,948 | |||||||||
Other comprehensive loss before reclassifications | (6,784 | ) | — | (154 | ) | (6,938 | ) | ||||||||||
Amounts reclassified from accumulated other comprehensive income | (6,908 | ) | — | — | (6,908 | ) | |||||||||||
Balance at December 31, 2011 | $ | 10,160 | $ | — | $ | 2,942 | $ | 13,102 | |||||||||
Other comprehensive income (loss) before reclassifications | 5,426 | (1,952 | ) | 170 | 3,644 | ||||||||||||
Amounts reclassified from accumulated other comprehensive income | (5,478 | ) | — | — | (5,478 | ) | |||||||||||
Balance at December 31, 2012 | $ | 10,108 | $ | (1,952 | ) | $ | 3,112 | $ | 11,268 | ||||||||
Other comprehensive income (loss) before reclassifications | 5,508 | 1,061 | (2,205 | ) | 4,364 | ||||||||||||
Amounts reclassified from accumulated other comprehensive income | (4,879 | ) | — | — | (4,879 | ) | |||||||||||
Balance at December 31, 2013 | $ | 10,737 | $ | (891 | ) | $ | 907 | $ | 10,753 | ||||||||
The following tables present the details of reclassifications out of accumulated other comprehensive income for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||
(In thousands) | 2013 | ||||||||||||||||
Details about Accumulated Other Comprehensive | Amount Reclassified | Affected Line Item in the | |||||||||||||||
Income Components | from Accumulated Other | Statement Where Net Income Is | |||||||||||||||
Comprehensive Income | Presented | ||||||||||||||||
Unrealized gains (losses) on available-for-sale securities: | |||||||||||||||||
Net realized gain on sales of securities | $ | 8,023 | Net realized investment gain | ||||||||||||||
Impairment expense | (25 | ) | Net realized investment gain | ||||||||||||||
Total reclassifications for the period, before tax | 7,998 | ||||||||||||||||
Tax (expense) benefit | (3,119 | ) | |||||||||||||||
Total reclassifications for the period, net of tax | $ | 4,879 | |||||||||||||||
(In thousands) | 2012 | ||||||||||||||||
Details about Accumulated Other Comprehensive | Amount Reclassified | Affected Line Item in the | |||||||||||||||
Income Components | from Accumulated Other | Statement Where Net Income | |||||||||||||||
Comprehensive Income | Is Presented | ||||||||||||||||
Unrealized gains (losses) on available-for-sale securities: | |||||||||||||||||
Net realized gain on sales of securities | $ | 9,662 | Net realized investment gain | ||||||||||||||
Impairment expense | (682 | ) | Net realized investment gain | ||||||||||||||
Total reclassifications for the period, before tax | 8,980 | ||||||||||||||||
Tax (expense) benefit | (3,502 | ) | |||||||||||||||
Total reclassifications for the period, net of tax | $ | 5,478 | |||||||||||||||
(In thousands) | 2011 | ||||||||||||||||
Details about Accumulated Other Comprehensive | Amount Reclassified | Affected Line Item in the | |||||||||||||||
Income Components | from Accumulated Other | Statement Where Net Income | |||||||||||||||
Comprehensive Income | Is Presented | ||||||||||||||||
Unrealized gains (losses) on available-for-sale securities: | |||||||||||||||||
Net realized gain on sales of securities | $ | 11,393 | Net realized investment gain | ||||||||||||||
Impairment expense | (68 | ) | Net realized investment gain | ||||||||||||||
Total reclassifications for the period, before tax | 11,325 | ||||||||||||||||
Tax (expense) benefit | (4,417 | ) | |||||||||||||||
Total reclassifications for the period, net of tax | $ | 6,908 | |||||||||||||||
The following tables present the tax effects related to the change in each component of other comprehensive income for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||
2013 | |||||||||||||||||
(In thousands) | Before-Tax | Tax | Net-of-Tax | ||||||||||||||
Amount | (Expense) | Amount | |||||||||||||||
Benefit | |||||||||||||||||
Unrealized gains (losses) on available-for-sale securities | $ | 9,030 | $ | (3,522 | ) | $ | 5,508 | ||||||||||
Reclassification adjustment for amounts included in net income | (7,998 | ) | 3,119 | (4,879 | ) | ||||||||||||
Defined benefit plan adjustments | 1,061 | — | 1,061 | ||||||||||||||
Foreign currency translation adjustment | (2,205 | ) | — | (2,205 | ) | ||||||||||||
Total Other Comprehensive Income (Loss) | $ | (112 | ) | $ | (403 | ) | $ | (515 | ) | ||||||||
2012 | |||||||||||||||||
(In thousands) | Before-Tax | Tax | Net-of-Tax | ||||||||||||||
Amount | (Expense) | Amount | |||||||||||||||
Benefit | |||||||||||||||||
Unrealized gains (losses) on available-for-sale securities | $ | 8,895 | $ | (3,469 | ) | $ | 5,426 | ||||||||||
Reclassification adjustment for amounts included in net income | (8,980 | ) | 3,502 | (5,478 | ) | ||||||||||||
Defined benefit plan adjustments | (1,952 | ) | — | (1,952 | ) | ||||||||||||
Foreign currency translation adjustment | 170 | — | 170 | ||||||||||||||
Total Other Comprehensive Income (Loss) | $ | (1,867 | ) | $ | 33 | $ | (1,834 | ) | |||||||||
2011 | |||||||||||||||||
(In thousands) | Before-Tax | Tax | Net-of-Tax | ||||||||||||||
Amount | (Expense) | Amount | |||||||||||||||
Benefit | |||||||||||||||||
Unrealized gains (losses) on available-for-sale securities | $ | (11,121 | ) | $ | 4,337 | $ | (6,784 | ) | |||||||||
Reclassification adjustment for amounts included in net income | (11,325 | ) | 4,417 | (6,908 | ) | ||||||||||||
Foreign currency translation adjustment | (154 | ) | — | (154 | ) | ||||||||||||
Total Other Comprehensive Income (Loss) | $ | (22,600 | ) | $ | 8,754 | $ | (13,846 | ) | |||||||||
Income Taxes | ' | ||||||||||||||||
Income Taxes | |||||||||||||||||
The provision for income taxes has been determined using the asset and liability approach of accounting for income taxes. Under this approach, deferred taxes represent the future tax consequences expected to occur when the reported amounts of assets and liabilities are recovered or paid. The provision for income taxes represents income taxes paid or payable for the current year plus the change in deferred taxes during the year. Deferred taxes result from the difference between financial and tax bases of our assets and liabilities and are adjusted for changes in tax rates and tax laws when such changes are enacted. Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized. | |||||||||||||||||
We establish reserves to remove some or all of the tax benefit of any of our tax positions at the time we determine that the positions become uncertain. We adjust these reserves, including any impact on the related interest and penalties, as facts and circumstances change. | |||||||||||||||||
Foreign Currency | ' | ||||||||||||||||
Foreign Currency | |||||||||||||||||
We record transactions denominated in foreign currencies on a monthly basis using exchange rates from throughout the year. Assets and liabilities denominated in foreign currencies are translated at the balance sheet dates using the closing rates of exchange between those foreign currencies and the U.S. dollar with any transaction gains or losses reported in other income (expense). Adjustments resulting from translating financial statements of international subsidiaries are recorded as a component of accumulated other comprehensive income (loss). | |||||||||||||||||
Revenue Recognition | ' | ||||||||||||||||
Revenue Recognition | |||||||||||||||||
Revenue is generally recognized when persuasive evidence of an arrangement exists, delivery has occurred, the product price is fixed or determinable, collection of the resulting receivable is reasonably assured, and product returns are reasonably estimable. For product sales, revenue is generally recognized upon shipment of the product to our customer in accordance with the title transfer terms of the sales agreement, generally FOB shipping point. In the case of consigned inventory, revenue is recognized when the end customer assumes ownership of the product. Contracts that contain multiple deliverables are evaluated to determine the units of accounting, and the consideration from the arrangement is allocated to each unit of accounting based on the relative selling price and corresponding terms of the contract. We use vendor-specific objective evidence of selling price. When this evidence is not available, we are generally not able to determine third-party evidence of selling price because of the extent of customization among competing products or services from other companies. We record revenue associated with installation services when all contractual obligations are complete. In instances where customer acceptance is required, revenue is deferred until all acceptance criteria have been met. Contracts that include both installation services and product sales are evaluated for revenue recognition in accordance with contract terms. As a result, depending on contract terms, installation services may be considered a separate deliverable or may be considered a combined single unit of accounting with the delivered product. Generally, either the purchaser, ADTRAN, or a third party can perform the installation of our products. Shipping fees are recorded as revenue and the related cost is included in cost of sales. Sales taxes invoiced to customers are included in revenues, and represent less than one percent of total revenues. The corresponding sales taxes paid are included in cost of goods sold. Value added taxes collected from customers in international jurisdictions are recorded in accrued expenses as a liability. Revenue is recorded net of discounts. Sales returns are accrued based on historical sales return experience, which we believe provides a reasonable estimate of future returns. | |||||||||||||||||
A portion of Enterprise Networks products are sold to a non-exclusive distribution network of major technology distributors in the United States. These large organizations then distribute or provide fulfillment services to an extensive network of value-added resellers and system integrators. Value-added resellers and system integrators may be affiliated with us as a channel partner, or they may purchase from the distributor in an unaffiliated fashion. Additionally, with certain limitations our distributors may return unused and unopened product for stock-balancing purposes when such returns are accompanied by offsetting orders for products of equal or greater value. | |||||||||||||||||
We participate in cooperative advertising and market development programs with certain customers. We use these programs to reimburse customers for certain forms of advertising, and in general, to allow our customers credits up to a specified percentage of their net purchases. Our costs associated with these programs are estimated and included in marketing expenses in our consolidated statements of income. We also participate in rebate programs to provide sales incentives for certain products. Our costs associated with these programs are estimated and accrued at the time of sale, and are recorded as a reduction of sales in our consolidated statements of income. | |||||||||||||||||
Unearned Revenue | ' | ||||||||||||||||
Unearned Revenue | |||||||||||||||||
Unearned revenue primarily represents customer billings on our maintenance service programs and unearned revenues relating to multiple element contracts where we still have contractual obligations to our customers. We currently offer maintenance contracts ranging from one to five years, primarily on Enterprise Networks Division products sold through distribution channels. Revenue attributable to maintenance contracts is recognized on a straight-line basis over the related contract term. In addition, we provide software maintenance and a variety of hardware maintenance services to Carrier Networks Division customers, which include customers of the acquired NSN BBA business, under contracts with terms up to ten years. At December 31, 2013 and 2012, unearned revenue was as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Current unearned revenue | $ | 22,205 | $ | 35,326 | |||||||||||||
Non-current unearned revenue | 14,643 | 22,377 | |||||||||||||||
Total | $ | 36,848 | $ | 57,703 | |||||||||||||
Other Income (Expense), Net | ' | ||||||||||||||||
Other Income (Expense), Net | |||||||||||||||||
Other income (expense), net, is comprised primarily of miscellaneous income and expense, gains and losses on foreign currency transactions, investment account management fees, and gains or losses on the disposal of property, plant and equipment occurring in the normal course of business. | |||||||||||||||||
Earnings Per Share | ' | ||||||||||||||||
Earnings per Share | |||||||||||||||||
Earnings per common share, and earnings per common share assuming dilution, are based on the weighted average number of common shares and, when dilutive, common equivalent shares outstanding during the year. See Note 14 of Notes to Consolidated Financial Statements for additional information. | |||||||||||||||||
Dividends | ' | ||||||||||||||||
Dividends | |||||||||||||||||
The Board of Directors presently anticipates that it will declare a regular quarterly dividend as long as the current tax treatment of dividends exists and adequate levels of liquidity are maintained. During the years ended December 31, 2013, 2012 and 2011, we paid $21.4 million, $22.8 million and $23.1 million, respectively, in shareholder dividends. On January 21, 2014, the Board of Directors declared a quarterly cash dividend of $0.09 per common share to be paid to shareholders of record at the close of business on February 6, 2014. The ex-dividend date was February 4, 2014 and the payment date was February 20, 2014. The quarterly dividend payment was $5.1 million. | |||||||||||||||||
Business Combinations | ' | ||||||||||||||||
Business Combinations | |||||||||||||||||
We use the acquisition method to account for business combinations. Under the acquisition method of accounting, we recognize the assets acquired and liabilities assumed at their fair value on the acquisition date. Goodwill is measured as the excess of the consideration transferred over the net assets acquired. Costs incurred to complete the business combination, such as legal, accounting or other professional fees, are charged to general and administrative expenses as they are incurred. | |||||||||||||||||
Recently Issued Accounting Standards | ' | ||||||||||||||||
Recently Issued Accounting Standards | |||||||||||||||||
During 2013, we adopted the following accounting standards, which had no material effect on our consolidated results of operations or financial condition: | |||||||||||||||||
In February 2013, the FASB issued Accounting Standards Update No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income (ASU 2013-02). ASU 2013-02 requires entities to provide information about the amounts reclassified out of accumulated other comprehensive income by component either on the face of the financial statements or in the footnotes. ASU 2013-02 does not change the current requirements for reporting net income or other comprehensive income in the financial statements. This update is effective prospectively for reporting periods beginning after December 15, 2012. We adopted this amendment during the first quarter of 2013, and we have provided the disclosures required for the years ended December 31, 2013, 2012 and 2011 in Note 1 of Notes to Consolidated Financial Statements. |
Nature_of_Business_and_Summary2
Nature of Business and Summary of Significant Accounting Policies (Tables) | 12 Months Ended | ||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||
Accounting Policies [Abstract] | ' | ||||||||||||||||
Summary of Warranty Expense and Write-Off Activity | ' | ||||||||||||||||
A summary of warranty expense and write-off activity for the years ended December 31, 2013 and 2012 is as follows: | |||||||||||||||||
Year Ended December 31, | 2013 | 2012 | |||||||||||||||
(In thousands) | |||||||||||||||||
Balance at beginning of period | $ | 9,653 | $ | 4,118 | |||||||||||||
Plus: Amounts charged to cost and expenses | 4,051 | 5,363 | |||||||||||||||
Amounts assumed on acquisition | — | 3,781 | |||||||||||||||
Less: Deductions | (4,727 | ) | (3,609 | ) | |||||||||||||
Balance at end of period | $ | 8,977 | $ | 9,653 | |||||||||||||
Changes in Accumulated Other Comprehensive Income, Net of Tax by Component | ' | ||||||||||||||||
The following tables present changes in accumulated other comprehensive income, net of tax, by component for the years ended December 31, 2011, 2012 and 2013: | |||||||||||||||||
(In thousands) | Unrealized | Defined | Foreign | Total | |||||||||||||
Gains (Losses) | Benefit Plan | Currency | |||||||||||||||
on Available- | Adjustments | Adjustments | |||||||||||||||
for-Sale | |||||||||||||||||
Securities | |||||||||||||||||
Balance at December 31, 2010 | $ | 23,852 | $ | — | $ | 3,096 | $ | 26,948 | |||||||||
Other comprehensive loss before reclassifications | (6,784 | ) | — | (154 | ) | (6,938 | ) | ||||||||||
Amounts reclassified from accumulated other comprehensive income | (6,908 | ) | — | — | (6,908 | ) | |||||||||||
Balance at December 31, 2011 | $ | 10,160 | $ | — | $ | 2,942 | $ | 13,102 | |||||||||
Other comprehensive income (loss) before reclassifications | 5,426 | (1,952 | ) | 170 | 3,644 | ||||||||||||
Amounts reclassified from accumulated other comprehensive income | (5,478 | ) | — | — | (5,478 | ) | |||||||||||
Balance at December 31, 2012 | $ | 10,108 | $ | (1,952 | ) | $ | 3,112 | $ | 11,268 | ||||||||
Other comprehensive income (loss) before reclassifications | 5,508 | 1,061 | (2,205 | ) | 4,364 | ||||||||||||
Amounts reclassified from accumulated other comprehensive income | (4,879 | ) | — | — | (4,879 | ) | |||||||||||
Balance at December 31, 2013 | $ | 10,737 | $ | (891 | ) | $ | 907 | $ | 10,753 | ||||||||
Reclassifications Out of Accumulated Other Comprehensive Income | ' | ||||||||||||||||
The following tables present the details of reclassifications out of accumulated other comprehensive income for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||
(In thousands) | 2013 | ||||||||||||||||
Details about Accumulated Other Comprehensive | Amount Reclassified | Affected Line Item in the | |||||||||||||||
Income Components | from Accumulated Other | Statement Where Net Income Is | |||||||||||||||
Comprehensive Income | Presented | ||||||||||||||||
Unrealized gains (losses) on available-for-sale securities: | |||||||||||||||||
Net realized gain on sales of securities | $ | 8,023 | Net realized investment gain | ||||||||||||||
Impairment expense | (25 | ) | Net realized investment gain | ||||||||||||||
Total reclassifications for the period, before tax | 7,998 | ||||||||||||||||
Tax (expense) benefit | (3,119 | ) | |||||||||||||||
Total reclassifications for the period, net of tax | $ | 4,879 | |||||||||||||||
(In thousands) | 2012 | ||||||||||||||||
Details about Accumulated Other Comprehensive | Amount Reclassified | Affected Line Item in the | |||||||||||||||
Income Components | from Accumulated Other | Statement Where Net Income | |||||||||||||||
Comprehensive Income | Is Presented | ||||||||||||||||
Unrealized gains (losses) on available-for-sale securities: | |||||||||||||||||
Net realized gain on sales of securities | $ | 9,662 | Net realized investment gain | ||||||||||||||
Impairment expense | (682 | ) | Net realized investment gain | ||||||||||||||
Total reclassifications for the period, before tax | 8,980 | ||||||||||||||||
Tax (expense) benefit | (3,502 | ) | |||||||||||||||
Total reclassifications for the period, net of tax | $ | 5,478 | |||||||||||||||
(In thousands) | 2011 | ||||||||||||||||
Details about Accumulated Other Comprehensive | Amount Reclassified | Affected Line Item in the | |||||||||||||||
Income Components | from Accumulated Other | Statement Where Net Income | |||||||||||||||
Comprehensive Income | Is Presented | ||||||||||||||||
Unrealized gains (losses) on available-for-sale securities: | |||||||||||||||||
Net realized gain on sales of securities | $ | 11,393 | Net realized investment gain | ||||||||||||||
Impairment expense | (68 | ) | Net realized investment gain | ||||||||||||||
Total reclassifications for the period, before tax | 11,325 | ||||||||||||||||
Tax (expense) benefit | (4,417 | ) | |||||||||||||||
Total reclassifications for the period, net of tax | $ | 6,908 | |||||||||||||||
Other Comprehensive Income | ' | ||||||||||||||||
The following tables present the tax effects related to the change in each component of other comprehensive income for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||
2013 | |||||||||||||||||
(In thousands) | Before-Tax | Tax | Net-of-Tax | ||||||||||||||
Amount | (Expense) | Amount | |||||||||||||||
Benefit | |||||||||||||||||
Unrealized gains (losses) on available-for-sale securities | $ | 9,030 | $ | (3,522 | ) | $ | 5,508 | ||||||||||
Reclassification adjustment for amounts included in net income | (7,998 | ) | 3,119 | (4,879 | ) | ||||||||||||
Defined benefit plan adjustments | 1,061 | — | 1,061 | ||||||||||||||
Foreign currency translation adjustment | (2,205 | ) | — | (2,205 | ) | ||||||||||||
Total Other Comprehensive Income (Loss) | $ | (112 | ) | $ | (403 | ) | $ | (515 | ) | ||||||||
2012 | |||||||||||||||||
(In thousands) | Before-Tax | Tax | Net-of-Tax | ||||||||||||||
Amount | (Expense) | Amount | |||||||||||||||
Benefit | |||||||||||||||||
Unrealized gains (losses) on available-for-sale securities | $ | 8,895 | $ | (3,469 | ) | $ | 5,426 | ||||||||||
Reclassification adjustment for amounts included in net income | (8,980 | ) | 3,502 | (5,478 | ) | ||||||||||||
Defined benefit plan adjustments | (1,952 | ) | — | (1,952 | ) | ||||||||||||
Foreign currency translation adjustment | 170 | — | 170 | ||||||||||||||
Total Other Comprehensive Income (Loss) | $ | (1,867 | ) | $ | 33 | $ | (1,834 | ) | |||||||||
2011 | |||||||||||||||||
(In thousands) | Before-Tax | Tax | Net-of-Tax | ||||||||||||||
Amount | (Expense) | Amount | |||||||||||||||
Benefit | |||||||||||||||||
Unrealized gains (losses) on available-for-sale securities | $ | (11,121 | ) | $ | 4,337 | $ | (6,784 | ) | |||||||||
Reclassification adjustment for amounts included in net income | (11,325 | ) | 4,417 | (6,908 | ) | ||||||||||||
Foreign currency translation adjustment | (154 | ) | — | (154 | ) | ||||||||||||
Total Other Comprehensive Income (Loss) | $ | (22,600 | ) | $ | 8,754 | $ | (13,846 | ) | |||||||||
Unearned Revenue | ' | ||||||||||||||||
At December 31, 2013 and 2012, unearned revenue was as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Current unearned revenue | $ | 22,205 | $ | 35,326 | |||||||||||||
Non-current unearned revenue | 14,643 | 22,377 | |||||||||||||||
Total | $ | 36,848 | $ | 57,703 | |||||||||||||
Business_Combinations_Tables
Business Combinations (Tables) | 12 Months Ended | ||||||||
Dec. 31, 2013 | |||||||||
Supplemental Pro Forma Information | ' | ||||||||
This supplemental pro forma information does not purport to be indicative of what would have occurred had the acquisition of the NSN BBA business been completed on January 1, 2011, nor are they indicative of any future results. | |||||||||
(In thousands) (Unaudited) | 2012 | 2011 | |||||||
Pro forma revenue | $ | 119,600 | $ | 196,256 | |||||
Pro forma pre-tax loss | $ | (23,621 | ) | $ | (36,980 | ) | |||
Weighted average exchange rate during the period (EURO/USD) | € | 1.00/$1.29 | € | 1.00/$1.38 | |||||
Nokia Siemens Networks [Member] | ' | ||||||||
Allocation of Purchase Price to Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date | ' | ||||||||
The allocation of the purchase price to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date is as follows: | |||||||||
(In Thousands) | |||||||||
Other receivables | $ | 9,486 | |||||||
Inventory | 21,068 | ||||||||
Property, plant and equipment | 5,035 | ||||||||
Accounts payable | (5,194 | ) | |||||||
Unearned revenue | (18,203 | ) | |||||||
Accrued expenses | (3,361 | ) | |||||||
Accrued wages and benefits | (2,251 | ) | |||||||
Deferred tax liability | (788 | ) | |||||||
Non-current unearned revenue | (19,886 | ) | |||||||
Net liabilities assumed | (14,094 | ) | |||||||
Customer relationships | 5,162 | ||||||||
Developed technology | 3,176 | ||||||||
Other | 13 | ||||||||
Gain on bargain purchase of a business, net of tax | (1,753 | ) | |||||||
Net consideration received from seller | $ | (7,496 | ) | ||||||
Bluesocket [Member] | ' | ||||||||
Allocation of Purchase Price to Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date | ' | ||||||||
The allocation of the purchase price to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date is as follows: | |||||||||
(In Thousands) | |||||||||
Cash | $ | 1,027 | |||||||
Accounts receivable | 298 | ||||||||
Inventory | 792 | ||||||||
Prepaid expenses | 357 | ||||||||
Property, plant and equipment | 173 | ||||||||
Deferred tax assets, net | 12,962 | ||||||||
Accounts payable | (441 | ) | |||||||
Unearned revenue | (600 | ) | |||||||
Accrued expenses | (332 | ) | |||||||
Net assets acquired | 14,236 | ||||||||
Customer relationships | 1,530 | ||||||||
Developed technology | 3,230 | ||||||||
Intellectual property | 930 | ||||||||
Trade names | 270 | ||||||||
Goodwill | 3,492 | ||||||||
Total purchase price | $ | 23,688 | |||||||
Stock_Incentive_Plans_Tables
Stock Incentive Plans (Tables) | 12 Months Ended | ||||||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||||||
Summary of Stock Options Outstanding | ' | ||||||||||||||||||||
The following table is a summary of our stock options outstanding as of December 31, 2012 and 2013 and the changes that occurred during 2013: | |||||||||||||||||||||
(In thousands, except per share amounts) | Number of | Weighted | Weighted Avg. | Aggregate | |||||||||||||||||
Options | Average | Remaining | Intrinsic Value | ||||||||||||||||||
Exercise Price | Contractual Life | ||||||||||||||||||||
in Years | |||||||||||||||||||||
Options outstanding, December 31, 2012 | 6,035 | $ | 24.81 | 6.69 | $ | 5,154 | |||||||||||||||
Options granted | 1,005 | $ | 23.64 | ||||||||||||||||||
Options cancelled/forfeited | (491 | ) | $ | 29.6 | |||||||||||||||||
Options exercised | (191 | ) | $ | 19.07 | |||||||||||||||||
Options outstanding, December 31, 2013 | 6,358 | $ | 24.43 | 6.6 | $ | 25,878 | |||||||||||||||
Options exercisable, December 31, 2013 | 3,911 | $ | 24.75 | 5.19 | $ | 15,336 | |||||||||||||||
Stock Options Outstanding | ' | ||||||||||||||||||||
The following table further describes our stock options outstanding as of December 31, 2013: | |||||||||||||||||||||
Options Outstanding | Options Exercisable | ||||||||||||||||||||
Range of | Options | Weighted Avg. | Weighted | Options | Weighted | ||||||||||||||||
Exercise Prices | Outstanding at | Remaining | Average | Exercisable at | Average | ||||||||||||||||
12/31/13 | Contractual Life | Exercise | 12/31/13 | Exercise | |||||||||||||||||
(In thousands) | in Years | Price | (In thousands) | Price | |||||||||||||||||
$14.88 – 18.07 | 1,456 | 7.42 | $ | 16.37 | 742 | $ | 15.79 | ||||||||||||||
$18.08 – 23.36 | 1,002 | 3.04 | $ | 22.59 | 1,001 | $ | 22.59 | ||||||||||||||
$23.37 – 26.06 | 1,745 | 8.1 | $ | 23.6 | 745 | $ | 23.54 | ||||||||||||||
$26.07 – 30.04 | 466 | 3.59 | $ | 29.39 | 383 | $ | 29.71 | ||||||||||||||
$30.05 – 30.36 | 905 | 7.67 | $ | 30.36 | 454 | $ | 30.36 | ||||||||||||||
$30.37 – 41.92 | 784 | 6.84 | $ | 33.78 | 586 | $ | 33.76 | ||||||||||||||
6,358 | 3,911 | ||||||||||||||||||||
Summary of RSUs and Restricted Stock Outstanding | ' | ||||||||||||||||||||
The following table is a summary of our RSUs and restricted stock outstanding as of December 31, 2012 and 2013 and the changes that occurred during 2013: | |||||||||||||||||||||
(In thousands, except per share amounts) | Number of | Weighted | |||||||||||||||||||
shares | Average Grant | ||||||||||||||||||||
Date Fair Value | |||||||||||||||||||||
Unvested RSUs and restricted stock outstanding, December 31, 2012 | 103 | $ | 29.25 | ||||||||||||||||||
RSUs and restricted stock granted | 41 | $ | 27.47 | ||||||||||||||||||
RSUs and restricted stock vested | (39 | ) | $ | 29.42 | |||||||||||||||||
Adjustments to shares granted due to shares earned at vesting | (10 | ) | $ | 39.21 | |||||||||||||||||
Unvested RSUs and restricted stock outstanding, December 31, 2013 | 95 | $ | 28.38 | ||||||||||||||||||
Stock-Based Compensation Expense Related to Stock Options, RSUs and Restricted Stock | ' | ||||||||||||||||||||
The following table summarizes stock-based compensation expense related to stock options, RSUs and restricted stock for the years ended December 31, 2013, 2012 and 2011, which was recognized as follows: | |||||||||||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||||||||||
Stock-based compensation expense included in cost of sales | $ | 465 | $ | 422 | $ | 412 | |||||||||||||||
Selling, general and administrative expense | 4,443 | 4,351 | 4,316 | ||||||||||||||||||
Research and development expense | 4,165 | 4,491 | 4,441 | ||||||||||||||||||
Stock-based compensation expense included in operating expenses | 8,608 | 8,842 | 8,757 | ||||||||||||||||||
Total stock-based compensation expense | 9,073 | 9,264 | 9,169 | ||||||||||||||||||
Tax benefit for expense associated with non-qualified options | (1,298 | ) | (1,234 | ) | (1,321 | ) | |||||||||||||||
Total stock-based compensation expense, net of tax | $ | 7,775 | $ | 8,030 | $ | 7,848 | |||||||||||||||
Stock Options [Member] | ' | ||||||||||||||||||||
Summary of Weighted-Average Assumptions and Value of Options Granted | ' | ||||||||||||||||||||
The weighted-average estimated fair value of stock options granted to employees and directors during the years ended December 31, 2013, 2012 and 2011 was $8.35 per share, $5.60 per share and $9.53 per share, respectively, with the following weighted-average assumptions: | |||||||||||||||||||||
2013 | 2012 | 2011 | |||||||||||||||||||
Expected volatility | 39.92 | % | 39.46 | % | 38.32 | % | |||||||||||||||
Risk-free interest rate | 1.71 | % | 0.96 | % | 1.01 | % | |||||||||||||||
Expected dividend yield | 1.52 | % | 2.05 | % | 1.19 | % | |||||||||||||||
Expected life (in years) | 6.36 | 6.18 | 5.15 | ||||||||||||||||||
Restricted Stock Units (RSUs) [Member] | ' | ||||||||||||||||||||
Summary of Weighted-Average Assumptions and Value of Options Granted | ' | ||||||||||||||||||||
The RSU pricing model also requires the use of several significant assumptions that impact the fair value estimate. The estimated fair value of the RSUs granted to employees during the years ended December 31, 2013, 2012 and 2011 was $27.72 per share, $19.46 per share and $38.73 per share, respectively, with the following assumptions: | |||||||||||||||||||||
2013 | 2012 | 2011 | |||||||||||||||||||
Expected volatility | 38.83 | % | 37.75 | % | 39.32 | % | |||||||||||||||
Risk-free interest rate | 0.61 | % | 0.38 | % | 0.37 | % | |||||||||||||||
Expected dividend yield | 1.52 | % | 2.12 | % | 1.08 | % |
Investments_Tables
Investments (Tables) | 12 Months Ended | ||||||||||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||||||||||
Investments Debt And Equity Securities [Abstract] | ' | ||||||||||||||||||||||||
Securities and Investments, Recorded at Either Fair Value or Cost | ' | ||||||||||||||||||||||||
At December 31, 2013, we held the following securities and investments, recorded at either fair value or cost: | |||||||||||||||||||||||||
Amortized | Gross Unrealized | Fair Value / | |||||||||||||||||||||||
Cost | Carrying | ||||||||||||||||||||||||
(In thousands) | Gains | Losses | Value | ||||||||||||||||||||||
Deferred compensation plan assets | $ | 12,300 | $ | 2,847 | $ | (24 | ) | $ | 15,123 | ||||||||||||||||
Corporate bonds | 166,370 | 534 | (45 | ) | 166,859 | ||||||||||||||||||||
Municipal fixed-rate bonds | 135,773 | 583 | (54 | ) | 136,302 | ||||||||||||||||||||
Municipal variable rate demand notes | 8,310 | — | — | 8,310 | |||||||||||||||||||||
Marketable equity securities | 24,654 | 13,975 | (177 | ) | 38,452 | ||||||||||||||||||||
Available-for-sale securities held at fair value | $ | 347,407 | $ | 17,939 | $ | (300 | ) | $ | 365,046 | ||||||||||||||||
Restricted investment held at cost | 48,250 | ||||||||||||||||||||||||
Other investments held at cost | 1,689 | ||||||||||||||||||||||||
Total carrying value of available-for-sale investments | $ | 414,985 | |||||||||||||||||||||||
At December 31, 2012, we held the following securities and investments, recorded at either fair value or cost: | |||||||||||||||||||||||||
Amortized | Gross Unrealized | Fair Value / | |||||||||||||||||||||||
Cost | Carrying | ||||||||||||||||||||||||
(In thousands) | Gains | Losses | Value | ||||||||||||||||||||||
Deferred compensation plan assets | $ | 10,688 | $ | 846 | $ | (7 | ) | $ | 11,527 | ||||||||||||||||
Corporate bonds | 185,464 | 966 | (18 | ) | 186,412 | ||||||||||||||||||||
Municipal fixed-rate bonds | 174,530 | 627 | (73 | ) | 175,084 | ||||||||||||||||||||
Municipal variable rate demand notes | 34,375 | — | — | 34,375 | |||||||||||||||||||||
Fixed income bond fund | 444 | 12 | — | 456 | |||||||||||||||||||||
Marketable equity securities | 20,966 | 14,630 | (392 | ) | 35,204 | ||||||||||||||||||||
Available-for-sale securities held at fair value | $ | 426,467 | $ | 17,081 | $ | (490 | ) | $ | 443,058 | ||||||||||||||||
Restricted investment held at cost | 48,250 | ||||||||||||||||||||||||
Other investments held at cost | 1,902 | ||||||||||||||||||||||||
Total carrying value of available-for-sale investments | $ | 493,210 | |||||||||||||||||||||||
Contractual Maturities of Corporate and Municipal Fixed-Rate Bonds | ' | ||||||||||||||||||||||||
As of December 31, 2013, corporate and municipal fixed-rate bonds had the following contractual maturities: | |||||||||||||||||||||||||
(In thousands) | Corporate | Municipal | |||||||||||||||||||||||
bonds | fixed-rate bonds | ||||||||||||||||||||||||
Less than one year | $ | 55,396 | $ | 46,606 | |||||||||||||||||||||
One to two years | 37,838 | 25,284 | |||||||||||||||||||||||
Two to three years | 70,447 | 55,358 | |||||||||||||||||||||||
Three to five years | 3,178 | 9,054 | |||||||||||||||||||||||
Total | $ | 166,859 | $ | 136,302 | |||||||||||||||||||||
Gross Realized Gains and Losses on Sale of Securities | ' | ||||||||||||||||||||||||
The following table presents gross realized gains and losses related to our investments for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||||||||||
Year Ended December 31, | 2013 | 2012 | 2011 | ||||||||||||||||||||||
(In thousands) | |||||||||||||||||||||||||
Gross realized gains | $ | 8,932 | $ | 11,006 | $ | 13,641 | |||||||||||||||||||
Gross realized losses | $ | (318 | ) | $ | (1,456 | ) | $ | (1,187 | ) | ||||||||||||||||
Breakdown of Investments with Unrealized Losses | ' | ||||||||||||||||||||||||
The following table presents the breakdown of investments with unrealized losses at December 31, 2013: | |||||||||||||||||||||||||
(In thousands) | Continuous Unrealized | Continuous Unrealized | Total | ||||||||||||||||||||||
Loss Position for Less | Loss Position for 12 | ||||||||||||||||||||||||
than 12 Months | Months or Greater | ||||||||||||||||||||||||
Fair Value | Unrealized | Fair Value | Unrealized | Fair Value | Unrealized | ||||||||||||||||||||
Losses | Losses | Losses | |||||||||||||||||||||||
Deferred compensation plan assets | $ | 48 | $ | (6 | ) | $ | 409 | $ | (18 | ) | $ | 457 | $ | (24 | ) | ||||||||||
Corporate bonds | 20,697 | (45 | ) | — | — | 20,697 | (45 | ) | |||||||||||||||||
Municipal fixed-rate bonds | 13,733 | (54 | ) | — | — | 13,733 | (54 | ) | |||||||||||||||||
Marketable equity securities | 2,758 | (173 | ) | 31 | (4 | ) | 2,789 | (177 | ) | ||||||||||||||||
Total | $ | 37,236 | $ | (278 | ) | $ | 440 | $ | (22 | ) | $ | 37,676 | $ | (300 | ) | ||||||||||
The following table presents the breakdown of investments with unrealized losses at December 31, 2012. | |||||||||||||||||||||||||
(In thousands) | Continuous Unrealized | Continuous Unrealized | Total | ||||||||||||||||||||||
Loss Position for Less | Loss Position for 12 | ||||||||||||||||||||||||
than 12 Months | Months or Greater | ||||||||||||||||||||||||
Fair Value | Unrealized | Fair Value | Unrealized | Fair Value | Unrealized | ||||||||||||||||||||
Losses | Losses | Losses | |||||||||||||||||||||||
Deferred compensation plan assets | $ | 915 | $ | (7 | ) | $ | — | $ | — | $ | 915 | $ | (7 | ) | |||||||||||
Corporate bonds | 20,204 | (17 | ) | 1,600 | (1 | ) | 21,804 | (18 | ) | ||||||||||||||||
Municipal fixed-rate bonds | 34,297 | (73 | ) | — | — | 34,297 | (73 | ) | |||||||||||||||||
Marketable equity securities | 6,171 | (355 | ) | 230 | (37 | ) | 6,401 | (392 | ) | ||||||||||||||||
Total | $ | 61,587 | $ | (452 | ) | $ | 1,830 | $ | (38 | ) | $ | 63,417 | $ | (490 | ) | ||||||||||
Fair Value Measurement of Cash Equivalents Held in Money Market Funds and Investments | ' | ||||||||||||||||||||||||
We have categorized our cash equivalents held in money market funds and our investments held at fair value into a three-level fair value hierarchy based on the priority of the inputs to the valuation technique for the cash equivalents and investments as follows: Level 1—Values based on unadjusted quoted prices for identical assets or liabilities in an active market; Level 2—Values based on quoted prices in markets that are not active or model inputs that are observable either directly or indirectly; Level 3—Values based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs include information supplied by investees. | |||||||||||||||||||||||||
Fair Value Measurements at December 31, 2013 Using | |||||||||||||||||||||||||
(In thousands) | Fair Value | Quoted Prices | Significant | Significant | |||||||||||||||||||||
in Active | Other | Unobservable | |||||||||||||||||||||||
Markets for | Observable | Inputs | |||||||||||||||||||||||
Identical Assets | Inputs | (Level 3) | |||||||||||||||||||||||
(Level 1) | (Level 2) | ||||||||||||||||||||||||
Cash equivalents | |||||||||||||||||||||||||
Money market funds | $ | 3,949 | $ | 3,949 | $ | — | $ | — | |||||||||||||||||
Available-for-sale securities | |||||||||||||||||||||||||
Deferred compensation plan assets | 15,123 | 15,123 | — | — | |||||||||||||||||||||
Available-for-sale debt securities | |||||||||||||||||||||||||
Corporate bonds | 166,859 | — | 166,859 | — | |||||||||||||||||||||
Municipal fixed-rate bonds | 136,302 | — | 136,302 | — | |||||||||||||||||||||
Municipal variable rate demand notes | 8,310 | — | 8,310 | — | |||||||||||||||||||||
Available-for-sale marketable equity securities | |||||||||||||||||||||||||
Marketable equity securities – technology industry | 11,398 | 11,398 | — | — | |||||||||||||||||||||
Marketable equity securities – other | 27,054 | 27,054 | — | — | |||||||||||||||||||||
Available-for-sale securities | 365,046 | 53,575 | 311,471 | — | |||||||||||||||||||||
Total | $ | 368,995 | $ | 57,524 | $ | 311,471 | $ | — | |||||||||||||||||
Fair Value Measurements at December 31, 2012 Using | |||||||||||||||||||||||||
(In thousands) | Fair Value | Quoted Prices | Significant | Significant | |||||||||||||||||||||
in Active | Other | Unobservable | |||||||||||||||||||||||
Markets for | Observable | Inputs | |||||||||||||||||||||||
Identical Assets | Inputs | (Level 3) | |||||||||||||||||||||||
(Level 1) | (Level 2) | ||||||||||||||||||||||||
Cash equivalents | |||||||||||||||||||||||||
Money market funds | $ | 28,071 | $ | 28,071 | $ | — | $ | — | |||||||||||||||||
Available-for-sale securities | |||||||||||||||||||||||||
Deferred compensation plan assets | 11,527 | 11,527 | — | — | |||||||||||||||||||||
Available-for-sale debt securities | |||||||||||||||||||||||||
Corporate bonds | 186,412 | — | 186,412 | — | |||||||||||||||||||||
Municipal fixed-rate bonds | 175,084 | — | 175,084 | — | |||||||||||||||||||||
Municipal variable rate demand notes | 34,375 | — | 34,375 | — | |||||||||||||||||||||
Fixed income bond fund | 456 | 456 | — | — | |||||||||||||||||||||
Available-for-sale marketable equity securities | |||||||||||||||||||||||||
Marketable equity securities – technology industry | 14,099 | 14,099 | — | — | |||||||||||||||||||||
Marketable equity securities – other | 21,105 | 21,105 | — | — | |||||||||||||||||||||
Available-for-sale securities | 443,058 | 47,187 | 395,871 | — | |||||||||||||||||||||
Total | $ | 471,129 | $ | 75,258 | $ | 395,871 | $ | — | |||||||||||||||||
Derivative_Instruments_and_Hed1
Derivative Instruments and Hedging Activities (Tables) | 12 Months Ended | ||||||
Dec. 31, 2013 | |||||||
Derivative Instruments And Hedging Activities Disclosure [Abstract] | ' | ||||||
Schedule of Fair Values of Hedging Instruments Recorded in Consolidated Balance Sheet | ' | ||||||
The fair values of our derivative instruments recorded in the Consolidated Balance Sheet as of December 31, 2013 were as follows: | |||||||
December 31, 2013 | |||||||
(In thousands) | Balance Sheet | Fair Value | |||||
Location | |||||||
Derivatives Not Designated as Hedging Instruments (Level 2): | |||||||
Foreign exchange contracts – asset derivatives | Other receivables | $ | 18 | ||||
Foreign exchange contracts – liability derivatives | Accounts payable | $ | (15 | ) | |||
Schedule of Change in Fair Values of Derivative Instruments Recorded in Consolidated Statements of Income | ' | ||||||
The change in the fair values of our derivative instruments recorded in the Consolidated Statements of Income during the year ended December 31, 2013 were as follows: | |||||||
(In thousands) | Income Statement | 2013 | |||||
Location | |||||||
Derivatives Not Designated as Hedging Instruments: | |||||||
Foreign exchange contracts | Other income (expense) | $ | 750 |
Inventory_Tables
Inventory (Tables) | 12 Months Ended | ||||||||
Dec. 31, 2013 | |||||||||
Inventory Disclosure [Abstract] | ' | ||||||||
Components of Inventory | ' | ||||||||
At December 31, 2013 and 2012, inventory was comprised of the following: | |||||||||
(In thousands) | 2013 | 2012 | |||||||
Raw materials | $ | 44,093 | $ | 47,054 | |||||
Work in process | 3,484 | 3,262 | |||||||
Finished goods | 42,534 | 51,061 | |||||||
Total Inventory, net | $ | 90,111 | $ | 101,377 | |||||
Property_Plant_and_Equipment_T
Property, Plant and Equipment (Tables) | 12 Months Ended | ||||||||
Dec. 31, 2013 | |||||||||
Property Plant And Equipment [Abstract] | ' | ||||||||
Property, Plant and Equipment | ' | ||||||||
At December 31, 2013 and 2012, property, plant and equipment were comprised of the following: | |||||||||
(In thousands) | 2013 | 2012 | |||||||
Land | $ | 4,263 | $ | 4,263 | |||||
Building and land improvements | 21,776 | 20,915 | |||||||
Building | 68,479 | 68,479 | |||||||
Furniture and fixtures | 16,465 | 16,631 | |||||||
Computer hardware and software | 70,468 | 68,596 | |||||||
Engineering and other equipment | 104,584 | 99,081 | |||||||
Total Property, Plant and Equipment | 286,035 | 277,965 | |||||||
Less accumulated depreciation | (209,296 | ) | (197,719 | ) | |||||
Total Property, Plant and Equipment, net | $ | 76,739 | $ | 80,246 | |||||
Goodwill_and_Intangible_Assets1
Goodwill and Intangible Assets (Tables) | 12 Months Ended | ||||||||||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||||||||||
Goodwill And Intangible Assets Disclosure [Abstract] | ' | ||||||||||||||||||||||||
Changes in Carrying Value of Goodwill | ' | ||||||||||||||||||||||||
The changes in the carrying value of goodwill, all of which is included in our Enterprise Networks division, for the year ended December 31, 2013 are as follows: | |||||||||||||||||||||||||
(In thousands) | |||||||||||||||||||||||||
Balance, December 31, 2012 | $ | 3,492 | |||||||||||||||||||||||
Acquisitions | — | ||||||||||||||||||||||||
Impairment losses | — | ||||||||||||||||||||||||
Balance, December 31, 2013 | $ | 3,492 | |||||||||||||||||||||||
Balance as of December 31, 2013: | |||||||||||||||||||||||||
Goodwill | $ | 3,492 | |||||||||||||||||||||||
Accumulated impairment losses | — | ||||||||||||||||||||||||
Total goodwill | $ | 3,492 | |||||||||||||||||||||||
Summary of Intangible Assets | ' | ||||||||||||||||||||||||
The following table presents our intangible assets as of December 31, 2013 and 2012: | |||||||||||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||||||||||
Gross Value | Accumulated | Net Value | Gross | Accumulated | Net Value | ||||||||||||||||||||
Amortization | Value | Amortization | |||||||||||||||||||||||
Customer relationships | $ | 6,996 | $ | (1,555 | ) | $ | 5,441 | $ | 6,769 | $ | (766 | ) | $ | 6,003 | |||||||||||
Developed technology | 6,537 | (2,692 | ) | 3,845 | 6,397 | (1,354 | ) | 5,043 | |||||||||||||||||
Intellectual property | 2,340 | (1,185 | ) | 1,155 | 2,340 | (851 | ) | 1,489 | |||||||||||||||||
Trade names | 270 | (145 | ) | 125 | 270 | (85 | ) | 185 | |||||||||||||||||
Other | 14 | (8 | ) | 6 | 13 | (3 | ) | 10 | |||||||||||||||||
Total | $ | 16,157 | $ | (5,585 | ) | $ | 10,572 | $ | 15,789 | $ | (3,059 | ) | $ | 12,730 | |||||||||||
Estimated Future Amortization Expense Related to Intangible Assets | ' | ||||||||||||||||||||||||
As of December 31, 2013, the estimated future amortization expense of intangible assets is as follows: | |||||||||||||||||||||||||
(In thousands) | Amount | ||||||||||||||||||||||||
2014 | $ | 2,335 | |||||||||||||||||||||||
2015 | 2,199 | ||||||||||||||||||||||||
2016 | 1,925 | ||||||||||||||||||||||||
2017 | 1,302 | ||||||||||||||||||||||||
2018 | 784 | ||||||||||||||||||||||||
Thereafter | 2,027 | ||||||||||||||||||||||||
Total | $ | 10,572 | |||||||||||||||||||||||
Income_Taxes_Tables
Income Taxes (Tables) | 12 Months Ended | ||||||||||||
Dec. 31, 2013 | |||||||||||||
Income Tax Disclosure [Abstract] | ' | ||||||||||||
Summary of Components of Provision for Income Taxes | ' | ||||||||||||
A summary of the components of the provision for income taxes for the years ended December 31, 2013, 2012 and 2011 is as follows: | |||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||
Current | |||||||||||||
Federal | $ | 15,641 | $ | 26,225 | $ | 59,382 | |||||||
State | 2,041 | 3,766 | 7,177 | ||||||||||
International | 1,437 | (504 | ) | 431 | |||||||||
Total Current | 19,119 | 29,487 | 66,990 | ||||||||||
Deferred | |||||||||||||
Federal | (3,606 | ) | (3,395 | ) | 527 | ||||||||
State | (412 | ) | (388 | ) | 60 | ||||||||
International | (40 | ) | (2 | ) | (12 | ) | |||||||
Total Deferred | (4,058 | ) | (3,785 | ) | 575 | ||||||||
Total Provision for Income Taxes | $ | 15,061 | $ | 25,702 | $ | 67,565 | |||||||
Effective Income Tax Rate Differs from Federal Statutory Rate | ' | ||||||||||||
Our effective income tax rate differs from the federal statutory rate due to the following: | |||||||||||||
2013 | 2012 | 2011 | |||||||||||
Tax provision computed at the federal statutory rate | 35 | % | 35 | % | 35 | % | |||||||
State income tax provision, net of federal benefit | 3.98 | 3.78 | 3.19 | ||||||||||
Federal research credits | (9.24 | ) | — | (2.50 | ) | ||||||||
International | (2.93 | ) | 3.8 | — | |||||||||
Tax-exempt income | (1.11 | ) | (1.01 | ) | (0.27 | ) | |||||||
State tax incentives | (2.19 | ) | (4.46 | ) | (0.90 | ) | |||||||
Stock-based compensation | 2.97 | 2.36 | 0.03 | ||||||||||
Domestic production activity deduction | (1.80 | ) | (3.21 | ) | (1.84 | ) | |||||||
Other, net | 0.07 | (1.03 | ) | 0.07 | |||||||||
Effective Tax Rate | 24.75 | % | 35.23 | % | 32.78 | % | |||||||
Income Before Provision for Income Taxes | ' | ||||||||||||
Income before provision for income taxes for the years ended December 31, 2013, 2012 and 2011 is as follows: | |||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||
U.S. entities | $ | 51,752 | $ | 80,926 | $ | 204,652 | |||||||
International entities | 9,103 | (7,961 | ) | 1,490 | |||||||||
Total | $ | 60,855 | $ | 72,965 | $ | 206,142 | |||||||
Principal Components of Current and Non-current Deferred Taxes | ' | ||||||||||||
Deferred income taxes on the balance sheet result from temporary differences between the amount of assets and liabilities recognized for financial reporting and tax purposes. The principal components of our current and non-current deferred taxes are as follows: | |||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||
Current deferred tax assets | |||||||||||||
Accounts receivable | $ | 51 | $ | 2 | |||||||||
Inventory | 9,877 | 7,507 | |||||||||||
Accrued expenses | 7,155 | 5,546 | |||||||||||
Total Current Deferred Tax Assets | 17,083 | 13,055 | |||||||||||
Non-current deferred tax assets | |||||||||||||
Accrued expenses | 140 | 116 | |||||||||||
Deferred compensation | 5,972 | 4,456 | |||||||||||
Stock-based compensation | 5,331 | 4,569 | |||||||||||
Uncertain tax positions related to state taxes and related interest | 1,107 | 1,005 | |||||||||||
Pensions | 301 | 605 | |||||||||||
Foreign losses | 5,702 | 6,978 | |||||||||||
State losses and credit carry-forwards | 3,737 | 4,349 | |||||||||||
Federal loss and research carry-forwards | 8,322 | 12,210 | |||||||||||
Valuation allowance | (8,842 | ) | (10,939 | ) | |||||||||
Total Non-current Deferred Tax Assets | 21,770 | 23,349 | |||||||||||
Total Deferred Tax Assets | $ | 38,853 | $ | 36,404 | |||||||||
Non-current deferred tax liabilities | |||||||||||||
Property, plant and equipment | $ | (5,499 | ) | $ | (6,405 | ) | |||||||
Intellectual property | (1,006 | ) | (1,839 | ) | |||||||||
Investments | (5,643 | ) | (4,844 | ) | |||||||||
Total Non-current Deferred Tax Liabilities | $ | (12,148 | ) | $ | (13,088 | ) | |||||||
Net Deferred Tax Assets | $ | 26,705 | $ | 23,316 | |||||||||
Change in Unrecognized Income Tax Benefits | ' | ||||||||||||
The change in the unrecognized income tax benefits for 2013, 2012 and 2011 is reconciled below: | |||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||
Balance at beginning of period | $ | 2,926 | $ | 2,970 | $ | 2,593 | |||||||
Increases for tax position related to: | |||||||||||||
Prior years | 89 | 965 | — | ||||||||||
Current year | 549 | 302 | 840 | ||||||||||
Decreases for tax positions related to: | |||||||||||||
Prior years | — | (49 | ) | (92 | ) | ||||||||
Settlements with taxing authorities | (141 | ) | (507 | ) | (354 | ) | |||||||
Expiration of applicable statute of limitations | (183 | ) | (755 | ) | (17 | ) | |||||||
Balance at end of period | $ | 3,240 | $ | 2,926 | $ | 2,970 | |||||||
Employee_Benefit_Plans_Tables
Employee Benefit Plans (Tables) | 12 Months Ended | ||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||
Compensation And Retirement Disclosure [Abstract] | ' | ||||||||||||||||
Schedule of Pension Benefit Plan Obligations and Funded Status | ' | ||||||||||||||||
The pension benefit plan obligations and funded status at December 31, 2013 and 2012, are as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Change in projected benefit obligation: | |||||||||||||||||
Projected benefit obligation at beginning of period | $ | (21,181 | ) | $ | — | ||||||||||||
Business combination | — | (18,063 | ) | ||||||||||||||
Service cost | (1,198 | ) | (766 | ) | |||||||||||||
Interest cost | (745 | ) | (494 | ) | |||||||||||||
Actuarial gain (loss) | 779 | (1,862 | ) | ||||||||||||||
Benefit payments | (1 | ) | — | ||||||||||||||
Foreign currency exchange rate changes | (1,008 | ) | 4 | ||||||||||||||
Projected benefit obligation at end of period | $ | (23,354 | ) | $ | (21,181 | ) | |||||||||||
Change in plan assets: | |||||||||||||||||
Fair value of plan assets at beginning of period | $ | 18,620 | $ | — | |||||||||||||
Business combination | — | 18,063 | |||||||||||||||
Actual return on plan assets | 1,281 | 592 | |||||||||||||||
Foreign currency exchange rate changes | 872 | (35 | ) | ||||||||||||||
Fair value of plan assets at end of period | $ | 20,773 | $ | 18,620 | |||||||||||||
Funded status at end of period | $ | (2,581 | ) | $ | (2,561 | ) | |||||||||||
Summary of Net Amounts Recognized Balance Sheet for the Unfunded Pension Liability | ' | ||||||||||||||||
The net amounts recognized in the balance sheet for the unfunded pension liability as of December 31, 2013 and 2012 are as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Current liability | $ | — | $ | (609 | ) | ||||||||||||
Non-current liability | (2,581 | ) | (1,952 | ) | |||||||||||||
Total | $ | (2,581 | ) | $ | (2,561 | ) | |||||||||||
Components of Net Periodic Pension Cost and Amounts Recognized Other Comprehensive Income | ' | ||||||||||||||||
The components of net periodic pension cost and amounts recognized in other comprehensive income for the year ended December 31, 2013 and the period May 4, 2012 to December 31, 2012 are as follows: | |||||||||||||||||
(In thousands) | Year Ended | May 4, 2012 to | |||||||||||||||
December 31, 2013 | December 31, 2012 | ||||||||||||||||
Net periodic benefit cost: | |||||||||||||||||
Service cost | $ | 1,198 | $ | 766 | |||||||||||||
Interest cost | 745 | 494 | |||||||||||||||
Expected return on plan assets | (1,010 | ) | (674 | ) | |||||||||||||
Net periodic benefit cost | 933 | 586 | |||||||||||||||
Other changes in plan assets and benefit obligations recognized in other comprehensive income: | |||||||||||||||||
Net actuarial (gain) loss | (779 | ) | 1,862 | ||||||||||||||
Net unrealized (gain) loss on plan assets | (282 | ) | 90 | ||||||||||||||
Other comprehensive (income) loss | (1,061 | ) | 1,952 | ||||||||||||||
Total recognized in net periodic benefit cost and other comprehensive income | $ | (128 | ) | $ | 2,538 | ||||||||||||
Accumulated Other Comprehensive Income | ' | ||||||||||||||||
The amounts recognized in accumulated other comprehensive income as of December 31, 2013 and 2012 are as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Net actuarial (gain) loss | $ | 1,083 | $ | 1,862 | |||||||||||||
Net unrealized (gain) loss on plan assets | (192 | ) | 90 | ||||||||||||||
Total | $ | 891 | $ | 1,952 | |||||||||||||
Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost | ' | ||||||||||||||||
The weighted-average assumptions that were used to determine the net periodic benefit cost for the year ended December 31, 2013 and the period May 4, 2012 to December 31, 2012 are as follows: | |||||||||||||||||
Year Ended | May 4, 2012 to | ||||||||||||||||
December 31, 2013 | December 31, 2012 | ||||||||||||||||
Discount rates | 3.5 | % | 3.96 | % | |||||||||||||
Rate of compensation increase | 2.25 | % | 2.25 | % | |||||||||||||
Expected long-term rates of return | 5.4 | % | 5.4 | % | |||||||||||||
Weighted-Average Assumptions Used to Determine Benefit Obligation | ' | ||||||||||||||||
The weighted-average assumptions that were used to determine the benefit obligation at December 31, 2013 and 2012: | |||||||||||||||||
2013 | 2012 | ||||||||||||||||
Discount rates | 3.7 | % | 3.5 | % | |||||||||||||
Rate of compensation increase | 2.25 | % | 2.25 | % | |||||||||||||
Schedule of Pension Benefit Payments Expected Future Service | ' | ||||||||||||||||
The following pension benefit payments, which reflect expected future service, as appropriate, are expected to be paid to participants: | |||||||||||||||||
(In thousands) | |||||||||||||||||
2014 | $ | 357 | |||||||||||||||
2015 | 312 | ||||||||||||||||
2016 | 223 | ||||||||||||||||
2017 | 390 | ||||||||||||||||
2018 | 650 | ||||||||||||||||
2019 – 2023 | 4,427 | ||||||||||||||||
Total | $ | 6,359 | |||||||||||||||
Schedule of Cash Equivalents and Investments Held at Fair Value | ' | ||||||||||||||||
We have categorized our cash equivalents and our investments held at fair value into a three-level fair value hierarchy based on the priority of the inputs to the valuation technique for the cash equivalents and investments as follows: Level 1—Values based on unadjusted quoted prices for identical assets or liabilities in an active market; Level 2—Values based on quoted prices in markets that are not active or model inputs that are observable either directly or indirectly; Level 3—Values based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs include information supplied by investees. | |||||||||||||||||
Fair Value Measurements at December 31, 2013 Using | |||||||||||||||||
(In thousands) | Fair Value | Quoted Prices | Significant | Significant | |||||||||||||
in Active | Other | Unobservable | |||||||||||||||
Markets for | Observable | Inputs | |||||||||||||||
Identical Assets | Inputs | (Level 3) | |||||||||||||||
(Level 1) | (Level 2) | ||||||||||||||||
Cash equivalents | $ | 4 | $ | 4 | $ | — | $ | — | |||||||||
Available-for-sale securities | |||||||||||||||||
Bond funds: | |||||||||||||||||
Corporate bonds | 12,976 | 12,976 | — | — | |||||||||||||
Government bonds | 1,915 | 1,915 | — | — | |||||||||||||
Equity funds: | |||||||||||||||||
Large cap blend | 4,720 | 4,720 | — | — | |||||||||||||
Large cap value | 287 | 287 | — | — | |||||||||||||
Balanced fund | 871 | 871 | — | — | |||||||||||||
Available-for-sale securities | 20,769 | 20,769 | — | — | |||||||||||||
Total | $ | 20,773 | $ | 20,773 | $ | — | $ | — | |||||||||
Fair Value Measurements at December 31, 2012 Using | |||||||||||||||||
(In thousands) | Fair Value | Quoted Prices | Significant | Significant | |||||||||||||
in Active | Other | Unobservable | |||||||||||||||
Markets for | Observable | Inputs | |||||||||||||||
Identical Assets | Inputs | (Level 3) | |||||||||||||||
(Level 1) | (Level 2) | ||||||||||||||||
Cash equivalents | $ | 6 | $ | 6 | $ | — | $ | — | |||||||||
Available-for-sale securities | |||||||||||||||||
Bond funds: | |||||||||||||||||
Corporate bonds | 12,041 | 12,041 | — | — | |||||||||||||
Government bonds | 1,839 | 1,839 | — | — | |||||||||||||
Equity funds: | |||||||||||||||||
Large cap blend | 3,740 | 3,740 | — | — | |||||||||||||
Large cap value | 235 | 235 | — | — | |||||||||||||
Balanced fund | 759 | 759 | — | — | |||||||||||||
Available-for-sale securities | 18,614 | 18,614 | — | — | |||||||||||||
Total | $ | 18,620 | $ | 18,620 | $ | — | $ | — | |||||||||
Fair Value of Assets Held by Trust and Amounts Payable to Plan Participants | ' | ||||||||||||||||
The fair value of the assets held by the Trust and the amounts payable to the plan participants are as follows: | |||||||||||||||||
(In thousands) | 2013 | 2012 | |||||||||||||||
Fair Value of Plan Assets | |||||||||||||||||
Long-term Investments | $ | 15,123 | $ | 11,527 | |||||||||||||
Total Fair Value of Plan Assets | $ | 15,123 | $ | 11,527 | |||||||||||||
Amounts Payable to Plan Participants | |||||||||||||||||
Non-current Liabilities | $ | 15,123 | $ | 11,527 | |||||||||||||
Total Amounts Payable to Plan Participants | $ | 15,123 | $ | 11,527 | |||||||||||||
Segment_Information_and_Major_1
Segment Information and Major Customers (Tables) | 12 Months Ended | ||||||||||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||||||||||
Segment Reporting [Abstract] | ' | ||||||||||||||||||||||||
Sales and Gross Profit of Reportable Segments | ' | ||||||||||||||||||||||||
The following table presents information about the reported sales and gross profit of our reportable segments for each of the years ended December 31, 2013, 2012 and 2011. Asset information by reportable segment is not reported, since we do not produce such information internally. | |||||||||||||||||||||||||
Sales and Gross Profit by Market Segment | |||||||||||||||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||||||||||||||
Sales | Gross Profit | Sales | Gross Profit | Sales | Gross Profit | ||||||||||||||||||||
Carrier Networks | $ | 500,733 | $ | 233,206 | $ | 492,096 | $ | 247,380 | $ | 569,579 | $ | 327,813 | |||||||||||||
Enterprise Networks | 141,011 | 75,680 | 128,518 | 69,263 | 147,650 | 86,505 | |||||||||||||||||||
Total | $ | 641,744 | $ | 308,886 | $ | 620,614 | $ | 316,643 | $ | 717,229 | $ | 414,318 | |||||||||||||
Sales Information by Product Category | ' | ||||||||||||||||||||||||
The table below presents sales information by product category for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||||||||||||||
Carrier Systems | $ | 427,850 | $ | 399,646 | $ | 420,289 | |||||||||||||||||||
Business Networking | 168,871 | 149,304 | 162,186 | ||||||||||||||||||||||
Loop Access | 45,023 | 71,664 | 134,754 | ||||||||||||||||||||||
Total | $ | 641,744 | $ | 620,614 | $ | 717,229 | |||||||||||||||||||
Subcategory Revenues | ' | ||||||||||||||||||||||||
The table below presents subcategory revenues for the years ended December 31, 2013, 2012 and 2011: | |||||||||||||||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||||||||||||||
Core Products | |||||||||||||||||||||||||
Broadband Access (included in Carrier Systems) | $ | 340,560 | $ | 320,076 | $ | 289,776 | |||||||||||||||||||
Optical (included in Carrier Systems) | 55,615 | 51,755 | 82,535 | ||||||||||||||||||||||
Internetworking (NetVanta® & Multi-service Access Gateways) (included in Business Networking) | 164,422 | 142,958 | 151,536 | ||||||||||||||||||||||
Subtotal | $ | 560,597 | $ | 514,789 | $ | 523,847 | |||||||||||||||||||
Legacy Products | |||||||||||||||||||||||||
HDSL (does not include T1) (included in Loop Access) | 41,666 | 66,974 | 126,976 | ||||||||||||||||||||||
Other products (excluding HDSL) | 39,481 | 38,851 | 66,406 | ||||||||||||||||||||||
Subtotal | $ | 81,147 | $ | 105,825 | $ | 193,382 | |||||||||||||||||||
Total | $ | 641,744 | $ | 620,614 | $ | 717,229 | |||||||||||||||||||
Sales Information by Geographic Area | ' | ||||||||||||||||||||||||
The following table presents sales information by geographic area for the years ended December 31, 2013, 2012 and 2011. International sales correlate to shipments with a non-U.S. destination. | |||||||||||||||||||||||||
(In thousands) | 2013 | 2012 | 2011 | ||||||||||||||||||||||
United States | $ | 455,996 | $ | 470,369 | $ | 632,795 | |||||||||||||||||||
Germany | 97,151 | 26,918 | 554 | ||||||||||||||||||||||
Other international | 88,597 | 123,327 | 83,880 | ||||||||||||||||||||||
Total | $ | 641,744 | $ | 620,614 | $ | 717,229 | |||||||||||||||||||
Commitments_and_Contingencies_
Commitments and Contingencies (Tables) | 12 Months Ended | ||||
Dec. 31, 2013 | |||||
Commitments And Contingencies Disclosure [Abstract] | ' | ||||
Future Minimum Rental Payments under Non-Cancelable Operating Leases with Original Maturities of Greater than 12 Months | ' | ||||
As of December 31, 2013, future minimum rental payments under non-cancelable operating leases with original maturities of greater than 12 months are approximately as follows: | |||||
(In thousands) | |||||
2014 | $ | 4,523 | |||
2015 | 3,556 | ||||
2016 | 2,506 | ||||
2017 | 2,156 | ||||
Thereafter | 686 | ||||
Total | $ | 13,427 | |||
Earnings_Per_Share_Tables
Earnings Per Share (Tables) | 12 Months Ended | ||||||||||||
Dec. 31, 2013 | |||||||||||||
Earnings Per Share [Abstract] | ' | ||||||||||||
Summary of Calculation of Basic and Diluted Earnings Per Share | ' | ||||||||||||
A summary of the calculation of basic and diluted earnings per share (EPS) for the years ended December 31, 2013, 2012 and 2011 is as follows: | |||||||||||||
(In thousands, except for per share amounts) | 2013 | 2012 | 2011 | ||||||||||
Numerator | |||||||||||||
Net Income | $ | 45,794 | $ | 47,263 | $ | 138,577 | |||||||
Denominator | |||||||||||||
Weighted average number of shares – basic | 59,001 | 63,259 | 64,145 | ||||||||||
Effect of dilutive securities: | |||||||||||||
Stock options | 390 | 488 | 1,236 | ||||||||||
Restricted stock and restricted stock units | 33 | 27 | 35 | ||||||||||
Weighted average number of shares – diluted | 59,424 | 63,774 | 65,416 | ||||||||||
Net income per share – basic | $ | 0.78 | $ | 0.75 | $ | 2.16 | |||||||
Net income per share – diluted | $ | 0.77 | $ | 0.74 | $ | 2.12 |
Summarized_Quarterly_Financial1
Summarized Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended | ||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||
Quarterly Financial Information Disclosure [Abstract] | ' | ||||||||||||||||
Quarterly Operating Results | ' | ||||||||||||||||
The following table presents unaudited quarterly operating results for each of our last eight fiscal quarters. | |||||||||||||||||
Unaudited Quarterly Operating Results | |||||||||||||||||
(In thousands, except for per share amounts) | |||||||||||||||||
Three Months Ended | March 31, 2013 | June 30, 2013 | September 30, 2013 | December 31, 2013 | |||||||||||||
Net sales | $ | 143,013 | $ | 162,233 | $ | 177,404 | $ | 159,094 | |||||||||
Gross profit | $ | 69,677 | $ | 79,798 | $ | 82,547 | $ | 76,864 | |||||||||
Operating income | $ | 6,563 | $ | 14,053 | $ | 17,210 | $ | 10,639 | |||||||||
Net income | $ | 7,890 | $ | 9,859 | $ | 16,205 | $ | 11,840 | |||||||||
Earnings per common share | $ | 0.13 | $ | 0.17 | $ | 0.28 | $ | 0.21 | |||||||||
Earnings per common share assuming dilution (1) | $ | 0.13 | $ | 0.17 | $ | 0.28 | $ | 0.2 | |||||||||
Three Months Ended | 31-Mar-12 | 30-Jun-12 | 30-Sep-12 | 31-Dec-12 | |||||||||||||
Net sales | $ | 134,735 | $ | 183,998 | $ | 162,125 | $ | 139,756 | |||||||||
Gross profit | $ | 74,087 | $ | 95,201 | $ | 79,972 | $ | 67,383 | |||||||||
Operating income | $ | 16,181 | $ | 26,838 | $ | 10,276 | $ | 2,874 | |||||||||
Net income | $ | 12,960 | $ | 21,070 | $ | 9,272 | $ | 3,961 | |||||||||
Earnings per common share | $ | 0.2 | $ | 0.33 | $ | 0.15 | $ | 0.06 | |||||||||
Earnings per common share assuming dilution (1) | $ | 0.2 | $ | 0.33 | $ | 0.15 | $ | 0.06 | |||||||||
(1) | Assumes exercise of dilutive stock options calculated under the treasury stock method. |
Nature_of_Business_and_Summary3
Nature of Business and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) | 12 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | ||||||||||||||||||||||
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2008 | Jan. 13, 1995 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Jan. 21, 2014 | Feb. 20, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2012 | Dec. 31, 2012 | Dec. 31, 2012 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | |
Customer | Customer | Employees | Minimum [Member] | Maximum [Member] | Building and Land Improvements [Member] | Building and Land Improvements [Member] | Office Machinery and Equipment [Member] | Office Machinery and Equipment [Member] | Engineering Machinery and Equipment [Member] | Engineering Machinery and Equipment [Member] | Computer Software [Member] | Computer Software [Member] | Subsequent Events [Member] | Subsequent Events [Member] | Credit Concentration Risk [Member] | Credit Concentration Risk [Member] | Immaterial Corrections [Member] | Adjustments to Assets [Member] | Adjustments to Liabilities [Member] | Adjustments to Operating Activities [Member] | Adjustments to Operating Activities [Member] | Adjustments to Investing Activities [Member] | Adjustments to Investing Activities [Member] | |||
Employees | Employees | Minimum [Member] | Maximum [Member] | Minimum [Member] | Maximum [Member] | Minimum [Member] | Maximum [Member] | Minimum [Member] | Maximum [Member] | |||||||||||||||||
OptionPlans | ||||||||||||||||||||||||||
Summary of Significant Accounting Policy [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Prior period reclassification adjustment | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ($2,700,000) | ($2,700,000) | $200,000 | ($100,000) | ($200,000) | $100,000 |
Understatement of net income of previous year | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 400,000 | ' | ' | ' | ' | ' | ' |
Original maturity period of cash and cash equivalents | 'Three months or less | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Cash, uninsured amount | 53,500,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Bonds payable, carrying amount | 46,500,000 | ' | ' | 50,000,000 | 20,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Bonds payable, fair value | 45,400,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Number of customers accounting for 13.1 and 10.4 percent of accounts receivable | 1 | 1 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Percentage of accounts receivable accounted by each customers | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 13.10% | 10.40% | ' | ' | ' | ' | ' | ' | ' |
Allowance for doubtful accounts | 130,000 | 6,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Property, plant and equipment, estimated useful lives | ' | ' | ' | ' | ' | ' | ' | '5 years | '39 years | '3 years | '7 years | '3 years | '7 years | '3 years | '5 years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Period of warranty for product defects | '90 days to ten years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Liability for warranty obligations | 8,977,000 | 9,653,000 | 4,118,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Number of stock option plans | 2 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Number of executive officers | 5 | 5 | 5 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Performance period | '3 years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Percentage of restricted stock units granted | ' | ' | ' | ' | ' | 0.00% | 150.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Stock-based compensation expense | 9,100,000 | 9,300,000 | 9,200,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Total compensation cost related to non-vested stock options, restricted stock units and restricted stock not yet recognized | 18,800,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Recognition period of non-vested compensation cost | '2 years 8 months 12 days | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Impairment losses recognized on long-lived assets | 0 | 0 | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Impairment losses recognized on goodwill and other intangible assets | 0 | 0 | 0 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Amortization, estimated useful lives | ' | ' | ' | ' | ' | '2 years 6 months | '14 years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Research and development costs | 131,055,000 | 125,951,000 | 100,301,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Percentage of sales taxes collected from customers | 1.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Maintenance contract period | ' | ' | ' | ' | ' | '1 year | '5 years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Dividend payments | 21,400,000 | 22,800,000 | 23,100,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Common stock dividends per share declared | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $0.09 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Quarterly dividend payable subsequent to balance sheet date | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $5,100,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Dividends payable, date declared | 21-Jan-14 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Record date for dividend payments | 6-Feb-14 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Cash dividend payment date | 20-Feb-14 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Ex-dividend date | 4-Feb-14 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Nature_of_Business_and_Summary4
Nature of Business and Summary of Significant Accounting Policies - Summary of Warranty Expense and Write-Off Activity (Detail) (USD $) | 12 Months Ended | |
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 |
Accounting Policies [Abstract] | ' | ' |
Balance at beginning of period | $9,653 | $4,118 |
Plus: Amounts charged to cost and expenses | 4,051 | 5,363 |
Amounts assumed on acquisition | ' | 3,781 |
Less: Deductions | -4,727 | -3,609 |
Balance at end of period | $8,977 | $9,653 |
Nature_of_Business_and_Summary5
Nature of Business and Summary of Significant Accounting Policies - Changes in Accumulated Other Comprehensive Income, Net of Tax by Component (Detail) (USD $) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Accumulated Other Comprehensive Income (Loss) [Line Items] | ' | ' | ' |
Beginning balance | $11,268 | $13,102 | $26,948 |
Other comprehensive income (loss) before reclassifications | 4,364 | 3,644 | -6,938 |
Amounts reclassified from accumulated other comprehensive income | -4,879 | -5,478 | -6,908 |
Ending balance | 10,753 | 11,268 | 13,102 |
Unrealized Gains (Losses) on Available-for-Sale Securities [Member] | ' | ' | ' |
Accumulated Other Comprehensive Income (Loss) [Line Items] | ' | ' | ' |
Beginning balance | 10,108 | 10,160 | 23,852 |
Other comprehensive income (loss) before reclassifications | 5,508 | 5,426 | -6,784 |
Amounts reclassified from accumulated other comprehensive income | -4,879 | -5,478 | -6,908 |
Ending balance | 10,737 | 10,108 | 10,160 |
Defined Benefit Plan Adjustments [Member] | ' | ' | ' |
Accumulated Other Comprehensive Income (Loss) [Line Items] | ' | ' | ' |
Beginning balance | -1,952 | ' | ' |
Other comprehensive income (loss) before reclassifications | 1,061 | -1,952 | ' |
Ending balance | -891 | -1,952 | ' |
Foreign Currency Adjustments [Member] | ' | ' | ' |
Accumulated Other Comprehensive Income (Loss) [Line Items] | ' | ' | ' |
Beginning balance | 3,112 | 2,942 | 3,096 |
Other comprehensive income (loss) before reclassifications | -2,205 | 170 | -154 |
Ending balance | $907 | $3,112 | $2,942 |
Nature_of_Business_and_Summary6
Nature of Business and Summary of Significant Accounting Policies - Reclassifications Out of Accumulated Other Comprehensive Income (Detail) (USD $) | 3 Months Ended | 12 Months Ended | |||||||||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Reclassification Adjustment Out of Accumulated Other Comprehensive Income [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net realized gain on sales of securities | ' | ' | ' | ' | ' | ' | ' | ' | $8,614 | $9,550 | $12,454 |
Total reclassifications for the period, before tax | ' | ' | ' | ' | ' | ' | ' | ' | 60,855 | 72,965 | 206,142 |
Tax (expense) benefit | ' | ' | ' | ' | ' | ' | ' | ' | -15,061 | -25,702 | -67,565 |
Total reclassifications for the period, net of tax | 11,840 | 16,205 | 9,859 | 7,890 | 3,961 | 9,272 | 21,070 | 12,960 | 45,794 | 47,263 | 138,577 |
Reclassification Out of Accumulated Other Comprehensive Income [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Reclassification Adjustment Out of Accumulated Other Comprehensive Income [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Total reclassifications for the period, before tax | ' | ' | ' | ' | ' | ' | ' | ' | 7,998 | 8,980 | 11,325 |
Tax (expense) benefit | ' | ' | ' | ' | ' | ' | ' | ' | -3,119 | -3,502 | -4,417 |
Total reclassifications for the period, net of tax | ' | ' | ' | ' | ' | ' | ' | ' | 4,879 | 5,478 | 6,908 |
Unrealized Gains (Losses) on Available-for-Sale Securities [Member] | Reclassification Out of Accumulated Other Comprehensive Income [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Reclassification Adjustment Out of Accumulated Other Comprehensive Income [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net realized gain on sales of securities | ' | ' | ' | ' | ' | ' | ' | ' | 8,023 | 9,662 | 11,393 |
Impairment Expense [Member] | Reclassification Out of Accumulated Other Comprehensive Income [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Reclassification Adjustment Out of Accumulated Other Comprehensive Income [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net realized gain on sales of securities | ' | ' | ' | ' | ' | ' | ' | ' | ($25) | ($682) | ($68) |
Nature_of_Business_and_Summary7
Nature of Business and Summary of Significant Accounting Policies - Other Comprehensive Income (Detail) (USD $) | 8 Months Ended | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Accounting Policies [Abstract] | ' | ' | ' | ' |
Unrealized gains (losses) on available-for-sale securities, Before-Tax Amount | ' | $9,030 | $8,895 | ($11,121) |
Reclassification adjustment for amounts included in net income, Before-Tax Amount | ' | -7,998 | -8,980 | -11,325 |
Defined benefit plan adjustments, Before-Tax Amount | ' | 1,061 | -1,952 | ' |
Foreign currency translation adjustment, Before-Tax Amount | ' | -2,205 | 170 | -154 |
Total Other Comprehensive Income (Loss), Before-Tax Amount | ' | -112 | -1,867 | -22,600 |
Unrealized gains (losses) on available-for-sale securities, Tax (Expense) Benefit | ' | -3,522 | -3,469 | 4,337 |
Reclassification adjustment for amounts included in net income, Tax (Expense) Benefit | ' | 3,119 | 3,502 | 4,417 |
Defined benefit plan adjustments, Tax (Expense) Benefit | ' | ' | ' | ' |
Foreign currency translation adjustment, Tax (Expense) Benefit | ' | ' | ' | ' |
Total Other Comprehensive Income (Loss), Tax (Expense) Benefit | ' | -403 | 33 | 8,754 |
Unrealized gains (losses) on available-for-sale securities, Net-of-Tax Amount | ' | 5,508 | 5,426 | -6,784 |
Reclassification adjustment for amounts included in net income, Net-of-Tax Amount | ' | -4,879 | -5,478 | -6,908 |
Defined benefit plan adjustments, Net-of-Tax Amount | -1,952 | 1,061 | -1,952 | ' |
Foreign currency translation adjustment, Net-of-Tax Amount | ' | -2,205 | 170 | -154 |
Other Comprehensive Income (Loss), net of tax | ' | ($515) | ($1,834) | ($13,846) |
Nature_of_Business_and_Summary8
Nature of Business and Summary of Significant Accounting Policies - Unearned Revenue (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Accounting Policies [Abstract] | ' | ' |
Current unearned revenue | $22,205 | $35,326 |
Non-current unearned revenue | 14,643 | 22,377 |
Total | $36,848 | $57,703 |
Business_Combinations_Addition
Business Combinations - Additional Information (Detail) (USD $) | 12 Months Ended | 0 Months Ended | 12 Months Ended | 0 Months Ended | 12 Months Ended | ||||||||||
Dec. 31, 2012 | Dec. 31, 2013 | 4-May-12 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2013 | Aug. 04, 2011 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | |
Nokia Siemens Networks [Member] | Nokia Siemens Networks [Member] | Nokia Siemens Networks [Member] | Nokia Siemens Networks [Member] | Nokia Siemens Networks [Member] | Bluesocket [Member] | Bluesocket [Member] | Bluesocket [Member] | Bluesocket [Member] | Bluesocket [Member] | Bluesocket [Member] | Bluesocket [Member] | Bluesocket [Member] | |||
Customer Relationships [Member] | Developed Technology [Member] | Customer Relationships [Member] | Developed Technology [Member] | Intellectual Property [Member] | Trade Names [Member] | ||||||||||
Business Acquisition [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Purchase price, net of consideration | ' | ' | ($7,496,000) | ' | ' | ' | ' | $23,688,000 | ' | ' | ' | ' | ' | ' | ' |
Bargain purchase gain, net of tax | 1,753,000 | ' | 1,800,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Average estimated useful life | ' | ' | ' | ' | ' | '13 years | '5 years | ' | ' | ' | ' | '7 years | '4 years 6 months | '7 years | '4 years 6 months |
Acquisition and integration related expenses and amortization of acquired intangibles | ' | ' | ' | 2,900,000 | 7,900,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Acquisition cost | ' | ' | ' | ' | ' | ' | ' | 23,700,000 | ' | ' | ' | ' | ' | ' | ' |
Goodwill | 3,492,000 | 3,492,000 | ' | ' | ' | ' | ' | 3,492,000 | 3,500,000 | ' | ' | ' | ' | ' | ' |
Acquisition and integration related expenses and amortization of acquired intangibles | ' | ' | ' | ' | ' | ' | ' | ' | $1,100,000 | $1,500,000 | $1,700,000 | ' | ' | ' | ' |
Business_Combinations_Allocati
Business Combinations - Allocation of Purchase Price to Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 | 4-May-12 | 4-May-12 | 4-May-12 | 4-May-12 | Dec. 31, 2013 | Aug. 04, 2011 | Aug. 04, 2011 | Aug. 04, 2011 | Aug. 04, 2011 | Aug. 04, 2011 |
In Thousands, unless otherwise specified | Nokia Siemens Networks [Member] | Nokia Siemens Networks [Member] | Nokia Siemens Networks [Member] | Nokia Siemens Networks [Member] | Bluesocket [Member] | Bluesocket [Member] | Bluesocket [Member] | Bluesocket [Member] | Bluesocket [Member] | Bluesocket [Member] | ||
Customer Relationships [Member] | Developed Technology [Member] | Other [Member] | Customer Relationships [Member] | Developed Technology [Member] | Intellectual Property [Member] | Trade Names [Member] | ||||||
Business Acquisition [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Cash | ' | ' | ' | ' | ' | ' | ' | $1,027 | ' | ' | ' | ' |
Goodwill | 3,492 | 3,492 | ' | ' | ' | ' | 3,500 | 3,492 | ' | ' | ' | ' |
Accounts receivable | ' | ' | 9,486 | ' | ' | ' | ' | 298 | ' | ' | ' | ' |
Inventory | ' | ' | 21,068 | ' | ' | ' | ' | 792 | ' | ' | ' | ' |
Prepaid expenses | ' | ' | ' | ' | ' | ' | ' | 357 | ' | ' | ' | ' |
Property, plant and equipment | ' | ' | 5,035 | ' | ' | ' | ' | 173 | ' | ' | ' | ' |
Deferred tax assets, net | ' | ' | ' | ' | ' | ' | ' | 12,962 | ' | ' | ' | ' |
Accounts payable | ' | ' | -5,194 | ' | ' | ' | ' | -441 | ' | ' | ' | ' |
Unearned revenue | ' | ' | -18,203 | ' | ' | ' | ' | -600 | ' | ' | ' | ' |
Accrued expenses | ' | ' | -3,361 | ' | ' | ' | ' | -332 | ' | ' | ' | ' |
Accrued wages and benefits | ' | ' | -2,251 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net assets acquired | ' | ' | ' | ' | ' | ' | ' | 14,236 | ' | ' | ' | ' |
Deferred tax liability | ' | ' | -788 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Non-current unearned revenue | ' | ' | -19,886 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net liabilities assumed | ' | ' | -14,094 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Intangible assets | ' | ' | ' | 5,162 | 3,176 | 13 | ' | ' | 1,530 | 3,230 | 930 | 270 |
Gain on bargain purchase of a business, net of tax | ' | ' | -1,753 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net consideration received from seller | ' | ' | ($7,496) | ' | ' | ' | ' | $23,688 | ' | ' | ' | ' |
Business_Combinations_Suppleme
Business Combinations - Supplemental Pro Forma Information (Detail) | 12 Months Ended | |||
Dec. 31, 2012 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2011 | |
USD ($) | EUR (€) | USD ($) | EUR (€) | |
Business Combinations [Abstract] | ' | ' | ' | ' |
Pro forma revenue | $119,600,000 | ' | $196,256,000 | ' |
Pro forma pre-tax loss | -23,621,000 | ' | -36,980,000 | ' |
Weighted average exchange rate during the period (EURO/USD) | $1.29 | € 1 | $1.38 | € 1 |
Stock_Incentive_Plans_Addition
Stock Incentive Plans - Additional Information (Detail) (USD $) | 12 Months Ended | 12 Months Ended | ||||||||||||||||||
In Millions, except Per Share data, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013 | Nov. 06, 2008 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 |
2006 Employee Stock Incentive Plan other than Options [Member] | 2006 Employee Stock Incentive Plan other than Options [Member] | 1996 Employee Incentive Stock Option Plan [Member] | 1996 Employee Incentive Stock Option Plan [Member] | 1996 Employee Incentive Stock Option Plan [Member] | 2006 Employee Stock Incentive Plan [Member] | 2006 Employee Stock Incentive Plan [Member] | 2006 Employee Stock Incentive Plan [Member] | 2010 Directors Stock Plan [Member] | 2010 Directors Stock Plan [Member] | 2010 Directors Stock Plan [Member] | Restricted Stock Units (RSUs) [Member] | Restricted Stock Units (RSUs) [Member] | Restricted Stock Units (RSUs) [Member] | RSUs and Restricted Stock [Member] | Restricted Stock [Member] | Non Vested Stock Options [Member] | ||||
Minimum [Member] | Maximum [Member] | Minimum [Member] | Maximum [Member] | Minimum [Member] | Maximum [Member] | |||||||||||||||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Number of shares of common stock authorized | ' | ' | ' | ' | ' | 17 | ' | ' | 13 | ' | ' | 0.5 | ' | ' | ' | ' | ' | ' | ' | ' |
Vesting period | ' | ' | ' | ' | ' | ' | '4 years | '5 years | '4 years | ' | ' | ' | ' | ' | '3 years | ' | ' | ' | ' | ' |
Contractual term | '10 years | ' | ' | ' | ' | '10 years | ' | ' | '10 years | ' | ' | '10 years | ' | ' | ' | ' | ' | ' | ' | ' |
Expiration date of options | ' | ' | ' | ' | ' | ' | '2014 | '2015 | ' | '2016 | '2023 | ' | '2014 | '2019 | ' | ' | ' | ' | ' | ' |
Number of shares available for grant | 6 | ' | ' | 3.3 | 5 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Total pre-tax intrinsic value of options exercised | $1.10 | $4.50 | $39.80 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Fair value of options fully vested | 7.7 | 7.7 | 7.3 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Shares granted for issuance | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 13 | ' | ' | ' | ' | ' |
Minimum earn out percentage | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.00% | ' | ' | ' | ' | ' |
Maximum earn out percentage | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 150.00% | ' | ' | ' | ' | ' |
Unamortized compensation cost | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1.7 | ' | ' |
Recognition period of non-vested compensation cost | '2 years 8 months 12 days | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | '1 year 10 months 24 days | '2 years 9 months 18 days |
Total stock-based compensation cost not yet recognized | $18.80 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $17.10 |
Weighted-average estimated value | $8.35 | $5.60 | $9.53 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Weighted average grant date fair value, RSUs granted | $27.47 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $27.72 | $19.46 | $38.73 | ' | ' | ' |
Estimated forfeitures for stock options | 2.50% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Forfeitures rate for RSUs and restricted stock units | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.00% | ' | ' |
Stock_Incentive_Plans_Summary_
Stock Incentive Plans - Summary of Stock Options Outstanding (Detail) (USD $) | 12 Months Ended | |
In Thousands, except Per Share data, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 |
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | ' | ' |
Number of Options, outstanding, Beginning Balance | 6,035 | ' |
Number of Options, granted | 1,005 | ' |
Number of Options, cancelled/forfeited | -491 | ' |
Number of Options, exercised | -191 | ' |
Number of Options, outstanding, Ending Balance | 6,358 | 6,035 |
Number of Options, Options exercisable | 3,911 | ' |
Weighted Average Exercise Price, outstanding, Beginning Balance | $24.81 | ' |
Weighted Average Exercise Price, granted | $23.64 | ' |
Weighted Average Exercise Price, cancelled/forfeited | $29.60 | ' |
Weighted Average Exercise Price, exercised | $19.07 | ' |
Weighted Average Exercise Price, outstanding, Ending Balance | $24.43 | $24.81 |
Weighted Average Exercise Price, Options Exercisable | $24.75 | ' |
Weighted Average Remaining Contractual Life In Years, Options outstanding | '6 years 7 months 6 days | '6 years 8 months 9 days |
Weighted Average Remaining Contractual Life In Years, Options exercisable | '5 years 2 months 9 days | ' |
Aggregate Intrinsic Value, Options outstanding, Beginning Balance | $5,154 | ' |
Aggregate Intrinsic Value, Options outstanding, Ending Balance | 25,878 | 5,154 |
Aggregate Intrinsic Value, Options exercisable | $15,336 | ' |
Stock_Incentive_Plans_Stock_Op
Stock Incentive Plans - Stock Options Outstanding (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 |
In Thousands, except Per Share data, unless otherwise specified | $14.88 - 18.07 [Member] | $18.08 - 23.36 [Member] | $23.37 - 26.06 [Member] | $26.07 - 30.04 [Member] | $30.05 - 30.36 [Member] | $30.37 - 41.92 [Member] | ||
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' |
Lower Range Limit | ' | ' | $14.88 | $18.08 | $23.37 | $26.07 | $30.05 | $30.37 |
Upper Range Limit | ' | ' | $18.07 | $23.36 | $26.06 | $30.04 | $30.36 | $41.92 |
Options Outstanding at 12/31/13 | 6,358 | 6,035 | 1,456 | 1,002 | 1,745 | 466 | 905 | 784 |
Weighted Avg. Remaining Contractual Life In Years, Options Outstanding | ' | ' | '7 years 5 months 1 day | '3 years 15 days | '8 years 1 month 6 days | '3 years 7 months 2 days | '7 years 8 months 1 day | '6 years 10 months 2 days |
Weighted Average Exercise Price, Options Outstanding | ' | ' | $16.37 | $22.59 | $23.60 | $29.39 | $30.36 | $33.78 |
Options Exercisable at 12/31/13 | 3,911 | ' | 742 | 1,001 | 745 | 383 | 454 | 586 |
Weighted Average Exercise Price, Options Exercisable | $24.75 | ' | $15.79 | $22.59 | $23.54 | $29.71 | $30.36 | $33.76 |
Stock_Incentive_Plans_Summary_1
Stock Incentive Plans - Summary of RSUs and Restricted Stock Outstanding (Detail) (USD $) | 12 Months Ended |
In Thousands, except Per Share data, unless otherwise specified | Dec. 31, 2013 |
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] | ' |
Number of Unvested RSUs and restricted stock outstanding, beginning balance | 103 |
Number of RSUs and restricted stock granted | 41 |
Number of RSUs and restricted stock vested | -39 |
Number of Unvested RSUs and restricted stock outstanding, Adjustments to shares granted due to shares earned at vesting | -10 |
Number of Unvested RSUs and restricted stock outstanding, ending balance | 95 |
Weighted Average Grant Date Fair Value, Unvested RSUs and restricted stock outstanding, Beginning balance | $29.25 |
Weighted Average Grant Date Fair Value, RSUs and restricted stock granted | $27.47 |
Weighted Average Grant Date Fair Value, RSUs and restricted stock vested | $29.42 |
Weighted Average Grant Date Fair Value, Adjustments to shares granted due to shares earned at vesting | $39.21 |
Weighted Average Grant Date Fair Value, Unvested RSUs and restricted stock outstanding, Ending balance | $28.38 |
Stock_Incentive_Plans_StockBas
Stock Incentive Plans - Stock-Based Compensation Expense Related to Stock Options, RSUs and Restricted Stock (Detail) (USD $) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ' | ' | ' |
Total stock-based compensation expense | $9,073 | $9,264 | $9,169 |
Tax benefit for expense associated with non-qualified options | -1,298 | -1,234 | -1,321 |
Total stock-based compensation expense, net of tax | 7,775 | 8,030 | 7,848 |
Cost of Sales [Member] | ' | ' | ' |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ' | ' | ' |
Total stock-based compensation expense | 465 | 422 | 412 |
Selling, General and Administrative Expense [Member] | ' | ' | ' |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ' | ' | ' |
Total stock-based compensation expense | 4,443 | 4,351 | 4,316 |
Research and Development Expense [Member] | ' | ' | ' |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ' | ' | ' |
Total stock-based compensation expense | 4,165 | 4,491 | 4,441 |
Operating Expenses [Member] | ' | ' | ' |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ' | ' | ' |
Total stock-based compensation expense | $8,608 | $8,842 | $8,757 |
Stock_Incentive_Plans_Summary_2
Stock Incentive Plans - Summary of Weighted-Average Assumptions and Value of Options Granted (Detail) | 12 Months Ended | ||
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | |
Stock Options [Member] | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' |
Expected volatility | 39.92% | 39.46% | 38.32% |
Risk-free interest rate | 1.71% | 0.96% | 1.01% |
Expected dividend yield | 1.52% | 2.05% | 1.19% |
Expected life (in years) | '6 years 4 months 10 days | '6 years 2 months 5 days | '5 years 1 month 24 days |
Restricted Stock Units (RSUs) [Member] | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' |
Expected volatility | 38.83% | 37.75% | 39.32% |
Risk-free interest rate | 0.61% | 0.38% | 0.37% |
Expected dividend yield | 1.52% | 2.12% | 1.08% |
Investments_Securities_and_Inv
Investments - Securities and Investments, Recorded at Either Fair Value or Cost (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Amortized Cost | $347,407 | $426,467 |
Gross Unrealized Gains | 17,939 | 17,081 |
Gross Unrealized Losses | -300 | -490 |
Available-for-sale-securities, Fair Value/Carrying Value | 365,046 | 443,058 |
Restricted investment held at cost | 48,250 | 48,250 |
Other investments held at cost | 1,689 | 1,902 |
Total carrying value of available-for-sale investments | 414,985 | 493,210 |
Deferred Compensation Plan Assets [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Amortized Cost | 12,300 | 10,688 |
Gross Unrealized Gains | 2,847 | 846 |
Gross Unrealized Losses | -24 | -7 |
Available-for-sale-securities, Fair Value/Carrying Value | 15,123 | 11,527 |
Corporate Bonds [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Amortized Cost | 166,370 | 185,464 |
Gross Unrealized Gains | 534 | 966 |
Gross Unrealized Losses | -45 | -18 |
Available-for-sale-securities, Fair Value/Carrying Value | 166,859 | 186,412 |
Municipal Fixed-Rate Bonds [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Amortized Cost | 135,773 | 174,530 |
Gross Unrealized Gains | 583 | 627 |
Gross Unrealized Losses | -54 | -73 |
Available-for-sale-securities, Fair Value/Carrying Value | 136,302 | 175,084 |
Municipal Variable Rate Demand Notes [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Amortized Cost | 8,310 | 34,375 |
Available-for-sale-securities, Fair Value/Carrying Value | 8,310 | 34,375 |
Fixed Income Bond Fund [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Amortized Cost | ' | 444 |
Gross Unrealized Gains | ' | 12 |
Available-for-sale-securities, Fair Value/Carrying Value | ' | 456 |
Marketable Equity Securities [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Amortized Cost | 24,654 | 20,966 |
Gross Unrealized Gains | 13,975 | 14,630 |
Gross Unrealized Losses | -177 | -392 |
Available-for-sale-securities, Fair Value/Carrying Value | $38,452 | $35,204 |
Investments_Contractual_Maturi
Investments - Contractual Maturities of Corporate and Municipal Fixed-Rate Bonds (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale-securities, Fair Value/Carrying Value | $365,046 | $443,058 |
Corporate Bonds [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Less than one year | 55,396 | ' |
One to two years | 37,838 | ' |
Two to three years | 70,447 | ' |
Three to five years | 3,178 | ' |
Available-for-sale-securities, Fair Value/Carrying Value | 166,859 | 186,412 |
Municipal Fixed-Rate Bonds [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Less than one year | 46,606 | ' |
One to two years | 25,284 | ' |
Two to three years | 55,358 | ' |
Three to five years | 9,054 | ' |
Available-for-sale-securities, Fair Value/Carrying Value | $136,302 | $175,084 |
Investments_Additional_Informa
Investments - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Securities | ||||
Schedule of Investments [Line Items] | ' | ' | ' | ' |
Identification of potential other-than-temporary impairments | ' | 25.00% | ' | ' |
Impairment of investments | $11 | $25 | $700 | $68 |
Number of marketable equity securities in an unrealized loss position | ' | 168 | ' | ' |
Investment [Member] | ' | ' | ' | ' |
Schedule of Investments [Line Items] | ' | ' | ' | ' |
Investment concentration risk percentage | ' | 5.00% | ' | ' |
Investments_Gross_Realized_Gai
Investments - Gross Realized Gains and Losses on Sale of Securities (Detail) (USD $) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Investments Debt And Equity Securities [Abstract] | ' | ' | ' |
Gross realized gains | $8,932 | $11,006 | $13,641 |
Gross realized losses | ($318) | ($1,456) | ($1,187) |
Investments_Breakdown_of_Inves
Investments - Breakdown of Investments with Unrealized Losses (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Continuous Unrealized Loss Position for Less than 12 Months, Fair Value | $37,236 | $61,587 |
Continuous Unrealized Loss Position for Less than 12 Months, Unrealized Losses | -278 | -452 |
Continuous Unrealized Loss Position for 12 Months or Greater, Fair Value | 440 | 1,830 |
Continuous Unrealized Loss Position for 12 Months or Greater, Unrealized Losses | -22 | -38 |
Total Fair Value | 37,676 | 63,417 |
Total Unrealized Losses | -300 | -490 |
Deferred Compensation Plan Assets [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Continuous Unrealized Loss Position for Less than 12 Months, Fair Value | 48 | 915 |
Continuous Unrealized Loss Position for Less than 12 Months, Unrealized Losses | -6 | -7 |
Continuous Unrealized Loss Position for 12 Months or Greater, Fair Value | 409 | ' |
Continuous Unrealized Loss Position for 12 Months or Greater, Unrealized Losses | -18 | ' |
Total Fair Value | 457 | 915 |
Total Unrealized Losses | -24 | -7 |
Corporate Bonds [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Continuous Unrealized Loss Position for Less than 12 Months, Fair Value | 20,697 | 20,204 |
Continuous Unrealized Loss Position for Less than 12 Months, Unrealized Losses | -45 | -17 |
Continuous Unrealized Loss Position for 12 Months or Greater, Fair Value | ' | 1,600 |
Continuous Unrealized Loss Position for 12 Months or Greater, Unrealized Losses | ' | -1 |
Total Fair Value | 20,697 | 21,804 |
Total Unrealized Losses | -45 | -18 |
Municipal Fixed-Rate Bonds [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Continuous Unrealized Loss Position for Less than 12 Months, Fair Value | 13,733 | 34,297 |
Continuous Unrealized Loss Position for Less than 12 Months, Unrealized Losses | -54 | -73 |
Total Fair Value | 13,733 | 34,297 |
Total Unrealized Losses | -54 | -73 |
Marketable Equity Securities [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Continuous Unrealized Loss Position for Less than 12 Months, Fair Value | 2,758 | 6,171 |
Continuous Unrealized Loss Position for Less than 12 Months, Unrealized Losses | -173 | -355 |
Continuous Unrealized Loss Position for 12 Months or Greater, Fair Value | 31 | 230 |
Continuous Unrealized Loss Position for 12 Months or Greater, Unrealized Losses | -4 | -37 |
Total Fair Value | 2,789 | 6,401 |
Total Unrealized Losses | ($177) | ($392) |
Investments_Fair_Value_Measure
Investments - Fair Value Measurements of Cash Equivalents Held in Money Market Funds and Investments (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | $365,046 | $443,058 |
Fair Value, Measurements, Recurring [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 365,046 | 443,058 |
Total | 368,995 | 471,129 |
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 53,575 | 47,187 |
Total | 57,524 | 75,258 |
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 311,471 | 395,871 |
Total | 311,471 | 395,871 |
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Total | ' | ' |
Fair Value, Measurements, Recurring [Member] | Money Market Funds [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Cash equivalents | 3,949 | 28,071 |
Fair Value, Measurements, Recurring [Member] | Money Market Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Cash equivalents | 3,949 | 28,071 |
Fair Value, Measurements, Recurring [Member] | Money Market Funds [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Cash equivalents | ' | ' |
Fair Value, Measurements, Recurring [Member] | Deferred Compensation Plan Assets [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 15,123 | 11,527 |
Fair Value, Measurements, Recurring [Member] | Deferred Compensation Plan Assets [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 15,123 | 11,527 |
Fair Value, Measurements, Recurring [Member] | Deferred Compensation Plan Assets [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 166,859 | 186,412 |
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 166,859 | 186,412 |
Fair Value, Measurements, Recurring [Member] | Corporate Bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Fair Value, Measurements, Recurring [Member] | Municipal Fixed-Rate Bonds [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 136,302 | 175,084 |
Fair Value, Measurements, Recurring [Member] | Municipal Fixed-Rate Bonds [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 136,302 | 175,084 |
Fair Value, Measurements, Recurring [Member] | Municipal Fixed-Rate Bonds [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Fair Value, Measurements, Recurring [Member] | Municipal Variable Rate Demand Notes [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 8,310 | 34,375 |
Fair Value, Measurements, Recurring [Member] | Municipal Variable Rate Demand Notes [Member] | Significant Other Observable Inputs (Level 2) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 8,310 | 34,375 |
Fair Value, Measurements, Recurring [Member] | Municipal Variable Rate Demand Notes [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Fair Value, Measurements, Recurring [Member] | Fixed Income Bond Fund [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | ' | 456 |
Fair Value, Measurements, Recurring [Member] | Fixed Income Bond Fund [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | ' | 456 |
Fair Value, Measurements, Recurring [Member] | Fixed Income Bond Fund [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Fair Value, Measurements, Recurring [Member] | Marketable Equity Securities - Technology Industry [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 11,398 | 14,099 |
Fair Value, Measurements, Recurring [Member] | Marketable Equity Securities - Technology Industry [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 11,398 | 14,099 |
Fair Value, Measurements, Recurring [Member] | Marketable Equity Securities - Technology Industry [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Fair Value, Measurements, Recurring [Member] | Marketable Equity Securities - Other [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 27,054 | 21,105 |
Fair Value, Measurements, Recurring [Member] | Marketable Equity Securities - Other [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | 27,054 | 21,105 |
Fair Value, Measurements, Recurring [Member] | Marketable Equity Securities - Other [Member] | Significant Unobservable Inputs (Level 3) [Member] | ' | ' |
Schedule of Available-for-sale Securities [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Derivative_Instruments_and_Hed2
Derivative Instruments and Hedging Activities - Additional Information (Detail) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2013 |
Forward Contracts [Member] | Forward Contracts [Member] | ||
USD ($) | EUR (€) | ||
Derivative [Line Items] | ' | ' | ' |
Maximum contractual period for derivatives | '12 months | ' | ' |
Derivative, notional amount | ' | $25.50 | € 18.50 |
Derivative maturity year | ' | '2014 | '2014 |
Derivative_Instruments_and_Hed3
Derivative Instruments and Hedging Activities - Schedule of Fair Values of Hedging Instruments Recorded in Consolidated Balance Sheet (Detail) (Significant Other Observable Inputs (Level 2) [Member], Foreign Exchange Contracts [Member], USD $) | Dec. 31, 2013 |
In Thousands, unless otherwise specified | |
Other Receivables [Member] | ' |
Derivatives Not Designated as Hedging Instruments (Level 2): | ' |
Derivatives asset, fair value | $18 |
Accounts Payable [Member] | ' |
Derivatives Not Designated as Hedging Instruments (Level 2): | ' |
Derivatives liability, fair value | ($15) |
Derivative_Instruments_and_Hed4
Derivative Instruments and Hedging Activities - Schedule of Change in Fair Values of Derivative Instruments Recorded in Consolidated Statements of Income (Detail) (Foreign Exchange Contracts [Member], Other Income (Expense) [Member], USD $) | 12 Months Ended |
In Thousands, unless otherwise specified | Dec. 31, 2013 |
Foreign Exchange Contracts [Member] | Other Income (Expense) [Member] | ' |
Derivatives Not Designated as Hedging Instruments: | ' |
Derivative instrument, gain or loss | $750 |
Inventory_Components_of_Invent
Inventory - Components of Inventory (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Inventory Disclosure [Abstract] | ' | ' |
Raw materials | $44,093 | $47,054 |
Work in process | 3,484 | 3,262 |
Finished goods | 42,534 | 51,061 |
Total Inventory, net | $90,111 | $101,377 |
Inventory_Additional_Informati
Inventory - Additional Information (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Inventory Disclosure [Abstract] | ' | ' |
Raw materials reserves, total | $16.90 | $9.90 |
Finished goods inventory reserves, total | $6.10 | $2.10 |
Property_Plant_and_Equipment_P
Property, Plant and Equipment - Property, Plant and Equipment (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Property Plant And Equipment [Abstract] | ' | ' |
Land | $4,263 | $4,263 |
Building and land improvements | 21,776 | 20,915 |
Building | 68,479 | 68,479 |
Furniture and fixtures | 16,465 | 16,631 |
Computer hardware and software | 70,468 | 68,596 |
Engineering and other equipment | 104,584 | 99,081 |
Total Property, Plant and Equipment | 286,035 | 277,965 |
Less accumulated depreciation | -209,296 | -197,719 |
Total Property, Plant and Equipment, net | $76,739 | $80,246 |
Property_Plant_and_Equipment_A
Property, Plant and Equipment - Additional Information (Detail) (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Property Plant And Equipment [Abstract] | ' | ' | ' |
Depreciation | $12.20 | $12.10 | $10.80 |
Goodwill_and_Intangible_Assets2
Goodwill and Intangible Assets - Changes in Carrying Value of Goodwill (Detail) (USD $) | 12 Months Ended | |
Dec. 31, 2013 | Dec. 31, 2012 | |
Goodwill And Intangible Assets Disclosure [Abstract] | ' | ' |
Goodwill, Beginning balance | $3,492,000 | ' |
Acquisitions | ' | ' |
Impairment losses | 0 | 0 |
Accumulated impairment losses | ' | ' |
Goodwill, Ending balance | $3,492,000 | $3,492,000 |
Goodwill_and_Intangible_Assets3
Goodwill and Intangible Assets - Additional Information (Detail) (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Goodwill And Intangible Assets Disclosure [Abstract] | ' | ' | ' |
Impairment losses | $0 | $0 | ' |
Amortization expense | $2.40 | $2 | $0.70 |
Goodwill_and_Intangible_Assets4
Goodwill and Intangible Assets - Summary of Intangible Assets (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Goodwill [Line Items] | ' | ' |
Gross Value | $16,157 | $15,789 |
Accumulated Amortization | -5,585 | -3,059 |
Net Value | 10,572 | 12,730 |
Customer Relationships [Member] | ' | ' |
Goodwill [Line Items] | ' | ' |
Gross Value | 6,996 | 6,769 |
Accumulated Amortization | -1,555 | -766 |
Net Value | 5,441 | 6,003 |
Developed Technology [Member] | ' | ' |
Goodwill [Line Items] | ' | ' |
Gross Value | 6,537 | 6,397 |
Accumulated Amortization | -2,692 | -1,354 |
Net Value | 3,845 | 5,043 |
Intellectual Property [Member] | ' | ' |
Goodwill [Line Items] | ' | ' |
Gross Value | 2,340 | 2,340 |
Accumulated Amortization | -1,185 | -851 |
Net Value | 1,155 | 1,489 |
Trade Names [Member] | ' | ' |
Goodwill [Line Items] | ' | ' |
Gross Value | 270 | 270 |
Accumulated Amortization | -145 | -85 |
Net Value | 125 | 185 |
Other [Member] | ' | ' |
Goodwill [Line Items] | ' | ' |
Gross Value | 14 | 13 |
Accumulated Amortization | -8 | -3 |
Net Value | $6 | $10 |
Goodwill_and_Intangible_Assets5
Goodwill and Intangible Assets - Estimated Future Amortization Expense Related to Intangible Assets (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Goodwill And Intangible Assets Disclosure [Abstract] | ' | ' |
2014 | $2,335 | ' |
2015 | 2,199 | ' |
2016 | 1,925 | ' |
2017 | 1,302 | ' |
2018 | 784 | ' |
Thereafter | 2,027 | ' |
Net Value | $10,572 | $12,730 |
Alabama_State_Industrial_Devel1
Alabama State Industrial Development Authority Financing and Economic Incentives - Additional Information (Detail) (USD $) | 12 Months Ended | ||||
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2008 | Jan. 13, 1995 | |
Debt Instrument [Line Items] | ' | ' | ' | ' | ' |
Proceeds from state industrial development authority issued taxable bonds loaned to ADTRAN | $46,500,000 | ' | ' | $50,000,000 | $20,000,000 |
Percentage of interest on amended and restated bond | 5.00% | ' | ' | ' | ' |
Maturity date of amended and restated bond | 1-Jan-20 | ' | ' | ' | ' |
Restricted certificate of deposit held | 48,250,000 | 48,250,000 | ' | ' | ' |
Total realized economic incentives | 1,300,000 | 1,400,000 | 1,900,000 | ' | ' |
Bond debt outstanding classified as current liability | 300,000 | 500,000 | ' | ' | ' |
Payments on long-term debt | ' | 500,000 | 1,000,000 | ' | ' |
Significant Other Observable Inputs (Level 2) [Member] | US States and Political Subdivisions Debt Securities [Member] | ' | ' | ' | ' | ' |
Debt Instrument [Line Items] | ' | ' | ' | ' | ' |
Estimated fair value of bond | $45,400,000 | ' | ' | ' | ' |
Income_Taxes_Summary_of_Compon
Income Taxes - Summary of Components of Provision for Income Taxes (Detail) (USD $) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Current | ' | ' | ' |
Federal | $15,641 | $26,225 | $59,382 |
State | 2,041 | 3,766 | 7,177 |
International | 1,437 | -504 | 431 |
Total Current | 19,119 | 29,487 | 66,990 |
Deferred | ' | ' | ' |
Federal | -3,606 | -3,395 | 527 |
State | -412 | -388 | 60 |
International | -40 | -2 | -12 |
Total Deferred | -4,058 | -3,785 | 575 |
Total Provision for Income Taxes | $15,061 | $25,702 | $67,565 |
Income_Taxes_Effective_Income_
Income Taxes - Effective Income Tax Rate Differs from Federal Statutory Rate (Detail) | 12 Months Ended | ||
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | |
Income Tax Disclosure [Abstract] | ' | ' | ' |
Tax provision computed at the federal statutory rate | 35.00% | 35.00% | 35.00% |
State income tax provision, net of federal benefit | 3.98% | 3.78% | 3.19% |
Federal research credits | -9.24% | ' | -2.50% |
International | -2.93% | 3.80% | ' |
Tax-exempt income | -1.11% | -1.01% | -0.27% |
State tax incentives | -2.19% | -4.46% | -0.90% |
Stock-based compensation | 2.97% | 2.36% | 0.03% |
Domestic production activity deduction | -1.80% | -3.21% | -1.84% |
Other, net | 0.07% | -1.03% | 0.07% |
Effective Tax Rate | 24.75% | 35.23% | 32.78% |
Income_Taxes_Income_Before_Pro
Income Taxes - Income Before Provision for Income Taxes (Detail) (USD $) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Income Tax Disclosure [Abstract] | ' | ' | ' |
U.S. entities | $51,752 | $80,926 | $204,652 |
International entities | 9,103 | -7,961 | 1,490 |
Income before provision for income taxes | $60,855 | $72,965 | $206,142 |
Income_Taxes_Principal_Compone
Income Taxes - Principal Components of Current and Non-current Deferred Taxes (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Income Tax Disclosure [Abstract] | ' | ' |
Accounts receivable | $51 | $2 |
Inventory | 9,877 | 7,507 |
Accrued expenses | 7,155 | 5,546 |
Total Current Deferred Tax Assets | 17,083 | 13,055 |
Accrued expenses | 140 | 116 |
Deferred compensation | 5,972 | 4,456 |
Stock-based compensation | 5,331 | 4,569 |
Uncertain tax positions related to state taxes and related interest | 1,107 | 1,005 |
Pensions | 301 | 605 |
Foreign losses | 5,702 | 6,978 |
State losses and credit carry-forwards | 3,737 | 4,349 |
Federal loss and research carry-forwards | 8,322 | 12,210 |
Valuation allowance | -8,842 | -10,939 |
Total Non-current Deferred Tax Assets | 21,770 | 23,349 |
Total Deferred Tax Assets | 38,853 | 36,404 |
Property, plant and equipment | -5,499 | -6,405 |
Intellectual property | -1,006 | -1,839 |
Investments | -5,643 | -4,844 |
Total Non-current Deferred Tax Liabilities | -12,148 | -13,088 |
Net Deferred Tax Assets | $26,705 | $23,316 |
Income_Taxes_Additional_Inform
Income Taxes - Additional Information (Detail) (USD $) | 12 Months Ended | |||
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | |
Components Of Income Before Taxes [Line Items] | ' | ' | ' | ' |
Deferred tax expense (benefit) provision recorded as an adjustment to other comprehensive income | $400,000 | $33,000 | ' | ' |
Foreign and domestic loss, unamortized research and development cost and state credit carry-forwards | 19,000,000 | ' | ' | ' |
Income tax benefit from exercise of stock options | 169,000 | 1,905,000 | 10,525,000 | ' |
Unrecognized tax benefits | 3,240,000 | 2,926,000 | 2,970,000 | 2,593,000 |
Unrecognized tax benefits, effective tax rate | 2,500,000 | 2,200,000 | 2,400,000 | ' |
Accrued interest and penalties | $1,000,000 | $800,000 | $1,200,000 | ' |
Minimum [Member] | ' | ' | ' | ' |
Components Of Income Before Taxes [Line Items] | ' | ' | ' | ' |
Operating loss carry forwards expiration year | '2014 | ' | ' | ' |
Maximum [Member] | ' | ' | ' | ' |
Components Of Income Before Taxes [Line Items] | ' | ' | ' | ' |
Operating loss carry forwards expiration year | '2030 | ' | ' | ' |
Income_Taxes_Change_in_Unrecog
Income Taxes - Change in Unrecognized Income Tax Benefits (Detail) (USD $) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Income Tax Disclosure [Abstract] | ' | ' | ' |
Balance at beginning of period | $2,926 | $2,970 | $2,593 |
Increases for tax position related to, Prior years | 89 | 965 | ' |
Increases for tax position related to, Current year | 549 | 302 | 840 |
Decreases for tax positions related to, Prior years | ' | -49 | -92 |
Settlements with taxing authorities | -141 | -507 | -354 |
Expiration of applicable statute of limitations | -183 | -755 | -17 |
Balance at end of period | $3,240 | $2,926 | $2,970 |
Employee_Benefit_Plans_Schedul
Employee Benefit Plans - Schedule of Pension Benefit Plan Obligations and Funded Status (Detail) (USD $) | 8 Months Ended | 12 Months Ended | |
In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 |
Change in projected benefit obligation: | ' | ' | ' |
Projected benefit obligation at beginning of period | ' | ($21,181) | ' |
Business combination | ' | ' | -18,063 |
Service cost | -766 | -1,198 | -766 |
Interest cost | -494 | -745 | -494 |
Actuarial gain (loss) | ' | 779 | -1,862 |
Benefit payments | ' | -1 | ' |
Foreign currency exchange rate changes | ' | -1,008 | 4 |
Projected benefit obligation at end of period | -21,181 | -23,354 | -21,181 |
Change in plan assets: | ' | ' | ' |
Fair value of plan assets at beginning of period | ' | 18,620 | ' |
Business combination | ' | ' | 18,063 |
Actual return on plan assets | ' | 1,281 | 592 |
Foreign currency exchange rate changes | ' | 872 | -35 |
Fair value of plan assets at end of period | 18,620 | 20,773 | 18,620 |
Funded status at end of period | ($2,561) | ($2,581) | ($2,561) |
Employee_Benefit_Plans_Additio
Employee Benefit Plans - Additional Information (Detail) (USD $) | 12 Months Ended | ||
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Accumulated benefit obligation | $22,900,000 | $20,800,000 | ' |
Criteria of employer to contribute in employee saving plan | '100% of an employee's first 3% of contributions and 50% of their next 2% of contributions | ' | ' |
Upper limit of employer match | 4.00% | ' | ' |
Maximum statutory compensation under code | 255,000 | ' | ' |
Percentage contributions under the Savings Plan, vested | 100.00% | ' | ' |
Contributions and plan administration costs for savings plan | 4,500,000 | 4,600,000 | 4,300,000 |
Maximum percentage of cash compensation allowed to be deferred under the deferred compensation plan | 25.00% | ' | ' |
Criteria for benefit distribution | 'Six months after termination of employment in a single lump sum payment or annual installments paid over a three or ten year term. | ' | ' |
Deferred compensation adjustments due to fair value of the trust assets | 2,800,000 | 900,000 | -200,000 |
Maximum number of years medical, dental and prescription drug coverage to spouse of deceased officer | '30 years | ' | ' |
Total liability recorded to provide medical, dental and prescription drug coverage | 200,000 | 200,000 | ' |
Scenario, Forecast [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Amortization from accumulated other comprehensive income | $0 | ' | ' |
First Contributions [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Percentage of employer match to employee's contribution | 100.00% | ' | ' |
Second Contributions [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Percentage of employer match to employee's contribution | 50.00% | ' | ' |
Bond Funds [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Percentage of target allocation ranges by asset class | 75.00% | ' | ' |
Equity Funds [Member] | ' | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' | ' |
Percentage of target allocation ranges by asset class | 25.00% | ' | ' |
Employee_Benefit_Plans_Summary
Employee Benefit Plans - Summary of Net Amounts Recognized Balance Sheet for the Unfunded Pension Liability (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Compensation And Retirement Disclosure [Abstract] | ' | ' |
Current liability | ' | ($609) |
Non-current liability | -2,581 | -1,952 |
Total | ($2,581) | ($2,561) |
Employee_Benefit_Plans_Compone
Employee Benefit Plans - Components of Net Periodic Pension Cost and Amounts Recognized Other Comprehensive Income (Detail) (USD $) | 8 Months Ended | 12 Months Ended | |
In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 |
Net periodic benefit cost: | ' | ' | ' |
Service cost | $766 | $1,198 | $766 |
Interest cost | 494 | 745 | 494 |
Expected return on plan assets | -674 | -1,010 | ' |
Net periodic benefit cost | 586 | 933 | ' |
Other changes in plan assets and benefit obligations recognized in other comprehensive income: | ' | ' | ' |
Other comprehensive (income) loss | 1,952 | -1,061 | 1,952 |
Total recognized in net periodic benefit cost and other comprehensive income | 2,538 | -128 | 2,538 |
Net Actuarial (Gain) Loss [Member] | ' | ' | ' |
Other changes in plan assets and benefit obligations recognized in other comprehensive income: | ' | ' | ' |
Net (gain) loss | 1,862 | -779 | 1,862 |
Net Unrealized (Gain) Loss on Plan Assets [Member] | ' | ' | ' |
Other changes in plan assets and benefit obligations recognized in other comprehensive income: | ' | ' | ' |
Net (gain) loss | $90 | ($282) | $90 |
Employee_Benefit_Plans_Accumul
Employee Benefit Plans - Accumulated Other Comprehensive Income (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Compensation And Retirement Disclosure [Abstract] | ' | ' |
Net actuarial (gain) loss | $1,083 | $1,862 |
Net unrealized (gain) loss on plan assets | -192 | 90 |
Total | $891 | $1,952 |
Employee_Benefit_Plans_Weighte
Employee Benefit Plans - Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost (Detail) | 8 Months Ended | 12 Months Ended |
Dec. 31, 2012 | Dec. 31, 2013 | |
Compensation And Retirement Disclosure [Abstract] | ' | ' |
Discount rates | 3.96% | 3.50% |
Rate of compensation increase | 2.25% | 2.25% |
Expected long-term rates of return | 5.40% | 5.40% |
Employee_Benefit_Plans_Weighte1
Employee Benefit Plans - Weighted-Average Assumptions Used to Determine Benefit Obligation (Detail) | Dec. 31, 2013 | Dec. 31, 2012 |
Compensation And Retirement Disclosure [Abstract] | ' | ' |
Discount rates | 3.70% | 3.50% |
Rate of compensation increase | 2.25% | 2.25% |
Employee_Benefit_Plans_Schedul1
Employee Benefit Plans - Schedule of Pension Benefit Payments Expected Future Service (Detail) (USD $) | Dec. 31, 2013 |
In Thousands, unless otherwise specified | |
Compensation And Retirement Disclosure [Abstract] | ' |
2014 | $357 |
2015 | 312 |
2016 | 223 |
2017 | 390 |
2018 | 650 |
2019 - 2023 | 4,427 |
Total | $6,359 |
Employee_Benefit_Plans_Schedul2
Employee Benefit Plans - Schedule of Cash Equivalents and Investments Held at Fair Value (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | $20,773 | $18,620 |
Fair Value [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 20,773 | 18,620 |
Fair Value [Member] | Cash Equivalents [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 4 | 6 |
Fair Value [Member] | Bond Funds [Member] | Corporate Bonds [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 12,976 | 12,041 |
Fair Value [Member] | Bond Funds [Member] | Government Bonds [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 1,915 | 1,839 |
Fair Value [Member] | Equity Funds [Member] | Large Cap Blend [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 4,720 | 3,740 |
Fair Value [Member] | Equity Funds [Member] | Large Cap Value [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 287 | 235 |
Fair Value [Member] | Balanced Fund [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 871 | 759 |
Fair Value [Member] | Available-for-Sale Securities [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 20,769 | 18,614 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 20,773 | 18,620 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Cash Equivalents [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 4 | 6 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Bond Funds [Member] | Corporate Bonds [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 12,976 | 12,041 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Bond Funds [Member] | Government Bonds [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 1,915 | 1,839 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Funds [Member] | Large Cap Blend [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 4,720 | 3,740 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Funds [Member] | Large Cap Value [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 287 | 235 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Balanced Fund [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 871 | 759 |
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Available-for-Sale Securities [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | 20,769 | 18,614 |
Significant Other Observable Inputs (Level 2) [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Other Observable Inputs (Level 2) [Member] | Cash Equivalents [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Other Observable Inputs (Level 2) [Member] | Bond Funds [Member] | Corporate Bonds [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Other Observable Inputs (Level 2) [Member] | Bond Funds [Member] | Government Bonds [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Other Observable Inputs (Level 2) [Member] | Equity Funds [Member] | Large Cap Blend [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Other Observable Inputs (Level 2) [Member] | Equity Funds [Member] | Large Cap Value [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Other Observable Inputs (Level 2) [Member] | Balanced Fund [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Other Observable Inputs (Level 2) [Member] | Available-for-Sale Securities [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Unobservable Inputs (Level 3) [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Unobservable Inputs (Level 3) [Member] | Cash Equivalents [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Unobservable Inputs (Level 3) [Member] | Bond Funds [Member] | Corporate Bonds [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Unobservable Inputs (Level 3) [Member] | Bond Funds [Member] | Government Bonds [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Unobservable Inputs (Level 3) [Member] | Equity Funds [Member] | Large Cap Blend [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Unobservable Inputs (Level 3) [Member] | Equity Funds [Member] | Large Cap Value [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Unobservable Inputs (Level 3) [Member] | Balanced Fund [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Significant Unobservable Inputs (Level 3) [Member] | Available-for-Sale Securities [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Available-for-sale securities | ' | ' |
Employee_Benefit_Plans_Fair_Va
Employee Benefit Plans - Fair Value of Assets Held by Trust and Amounts Payable to Plan Participants (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Thousands, unless otherwise specified | ||
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Long-term Investments | $15,123 | $11,527 |
Amounts Payable to Plan Participants Non-current Liabilities | 15,123 | 11,527 |
Long-Term Investments [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Long-term Investments | 15,123 | 11,527 |
Non-Current Liabilities [Member] | ' | ' |
Defined Benefit Plan Disclosure [Line Items] | ' | ' |
Amounts Payable to Plan Participants Non-current Liabilities | $15,123 | $11,527 |
Segment_Information_and_Major_2
Segment Information and Major Customers - Additional Information (Detail) (USD $) | 12 Months Ended | ||
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | |
Product_Category | Customer | Customer | |
Customer | |||
Segment | |||
Segment Reporting Information [Line Items] | ' | ' | ' |
Number of operating reportable segments | 2 | ' | ' |
Number of product categories | 3 | ' | ' |
Number of other customers who accounted for more than threshold percentage of revenue | 0 | 0 | 0 |
Number of single customer comprising more than 10% of revenue | 2 | 1 | 2 |
Long-lived assets | $76,700,000 | $80,200,000 | ' |
Customer Concentration Risk [Member] | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' |
Concentration risk, percentage | 17.00% | 23.00% | 25.00% |
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | The Five Largest Customers Other Than Those With More Than 10% Of Revenues [Member] | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' |
Concentration risk, percentage | 22.00% | 34.00% | 29.00% |
Customer Two Concentration Risk [Member] | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' |
Concentration risk, percentage | 14.00% | ' | 10.00% |
Inter-Segment [Member] | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' |
Inter-segment revenues | 0 | ' | ' |
United States [Member] | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' |
Long-lived assets | 71,200,000 | 73,900,000 | ' |
Outside United States [Member] | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' |
Long-lived assets | $5,500,000 | $6,300,000 | ' |
Segment_Information_and_Major_3
Segment Information and Major Customers - Sales and Gross Profit of Reportable Segments (Detail) (USD $) | 3 Months Ended | 12 Months Ended | |||||||||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | $159,094 | $177,404 | $162,233 | $143,013 | $139,756 | $162,125 | $183,998 | $134,735 | $641,744 | $620,614 | $717,229 |
Gross profit | 76,864 | 82,547 | 79,798 | 69,677 | 67,383 | 79,972 | 95,201 | 74,087 | 308,886 | 316,643 | 414,318 |
Carrier Networks [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 500,733 | 492,096 | 569,579 |
Gross profit | ' | ' | ' | ' | ' | ' | ' | ' | 233,206 | 247,380 | 327,813 |
Enterprise Networks [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Segment Reporting Information [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 141,011 | 128,518 | 147,650 |
Gross profit | ' | ' | ' | ' | ' | ' | ' | ' | $75,680 | $69,263 | $86,505 |
Segment_Information_and_Major_4
Segment Information and Major Customers - Sales Information by Product Category (Detail) (USD $) | 3 Months Ended | 12 Months Ended | |||||||||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | $159,094 | $177,404 | $162,233 | $143,013 | $139,756 | $162,125 | $183,998 | $134,735 | $641,744 | $620,614 | $717,229 |
Carrier Systems [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 427,850 | 399,646 | 420,289 |
Business Networking [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 168,871 | 149,304 | 162,186 |
Loop Access [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | $45,023 | $71,664 | $134,754 |
Segment_Information_and_Major_5
Segment Information and Major Customers - Subcategory Revenues (Detail) (USD $) | 3 Months Ended | 12 Months Ended | |||||||||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | $159,094 | $177,404 | $162,233 | $143,013 | $139,756 | $162,125 | $183,998 | $134,735 | $641,744 | $620,614 | $717,229 |
Core Products [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 560,597 | 514,789 | 523,847 |
Legacy Products [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 81,147 | 105,825 | 193,382 |
Broadband Access (Included in Carrier Systems) [Member] | Core Products [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 340,560 | 320,076 | 289,776 |
Optical (Included in Carrier Systems) [Member] | Core Products [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 55,615 | 51,755 | 82,535 |
Internetworking (NetVanta & Multi-Service Access Gateways) (Included in Business Networking) [Member] | Core Products [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 164,422 | 142,958 | 151,536 |
HDSL (Does not Include T1) (Included in Loop Access) [Member] | Legacy Products [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 41,666 | 66,974 | 126,976 |
Other Products (Excluding HDSL) [Member] | Legacy Products [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | $39,481 | $38,851 | $66,406 |
Segment_Information_and_Major_6
Segment Information and Major Customers - Sales Information by Geographic Area (Detail) (USD $) | 3 Months Ended | 12 Months Ended | |||||||||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | $159,094 | $177,404 | $162,233 | $143,013 | $139,756 | $162,125 | $183,998 | $134,735 | $641,744 | $620,614 | $717,229 |
United States [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 455,996 | 470,369 | 632,795 |
Germany [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | 97,151 | 26,918 | 554 |
Other International [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenue from External Customer [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales | ' | ' | ' | ' | ' | ' | ' | ' | $88,597 | $123,327 | $83,880 |
Commitments_and_Contingencies_1
Commitments and Contingencies - Additional Information (Detail) (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Commitments And Contingencies Disclosure [Abstract] | ' | ' | ' |
Operating leases expiration year | '2018 | ' | ' |
Rental expense | $4.80 | $3.90 | $2.40 |
Commitments_and_Contingencies_2
Commitments and Contingencies - Future Minimum Rental Payments under Non-Cancelable Operating Leases with Original Maturities of Greater than 12 Months (Detail) (USD $) | Dec. 31, 2013 |
In Thousands, unless otherwise specified | |
Commitments And Contingencies Disclosure [Abstract] | ' |
2014 | $4,523 |
2015 | 3,556 |
2016 | 2,506 |
2017 | 2,156 |
Thereafter | 686 |
Total | $13,427 |
Earnings_Per_Share_Summary_of_
Earnings Per Share - Summary of Calculation of Basic and Diluted Earnings Per Share (Detail) (USD $) | 3 Months Ended | 12 Months Ended | |||||||||
In Thousands, except Per Share data, unless otherwise specified | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Numerator | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net Income | $11,840 | $16,205 | $9,859 | $7,890 | $3,961 | $9,272 | $21,070 | $12,960 | $45,794 | $47,263 | $138,577 |
Denominator | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Weighted average number of shares - basic | ' | ' | ' | ' | ' | ' | ' | ' | 59,001 | 63,259 | 64,145 |
Effect of dilutive securities: | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Stock options | ' | ' | ' | ' | ' | ' | ' | ' | 390 | 488 | 1,236 |
Restricted stock and restricted stock units | ' | ' | ' | ' | ' | ' | ' | ' | 33 | 27 | 35 |
Weighted average number of shares - diluted | ' | ' | ' | ' | ' | ' | ' | ' | 59,424 | 63,774 | 65,416 |
Net income per share - basic | $0.21 | $0.28 | $0.17 | $0.13 | $0.06 | $0.15 | $0.33 | $0.20 | $0.78 | $0.75 | $2.16 |
Net income per share - diluted | $0.20 | $0.28 | $0.17 | $0.13 | $0.06 | $0.15 | $0.33 | $0.20 | $0.77 | $0.74 | $2.12 |
Earnings_Per_Share_Additional_
Earnings Per Share - Additional Information (Detail) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Earnings Per Share [Abstract] | ' | ' | ' |
Anti dilutive options, Total | 3.2 | 3.2 | 1.2 |
Summarized_Quarterly_Financial2
Summarized Quarterly Financial Data (Unaudited) - Quarterly Operating Results (Detail) (USD $) | 3 Months Ended | 12 Months Ended | |||||||||
In Thousands, except Per Share data, unless otherwise specified | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Quarterly Financial Information Disclosure [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Net sales | $159,094 | $177,404 | $162,233 | $143,013 | $139,756 | $162,125 | $183,998 | $134,735 | $641,744 | $620,614 | $717,229 |
Gross profit | 76,864 | 82,547 | 79,798 | 69,677 | 67,383 | 79,972 | 95,201 | 74,087 | 308,886 | 316,643 | 414,318 |
Operating income | 10,639 | 17,210 | 14,053 | 6,563 | 2,874 | 10,276 | 26,838 | 16,181 | 48,465 | 56,169 | 189,138 |
Net Income | $11,840 | $16,205 | $9,859 | $7,890 | $3,961 | $9,272 | $21,070 | $12,960 | $45,794 | $47,263 | $138,577 |
Earnings per common share | $0.21 | $0.28 | $0.17 | $0.13 | $0.06 | $0.15 | $0.33 | $0.20 | $0.78 | $0.75 | $2.16 |
Earnings per common share assuming dilution | $0.20 | $0.28 | $0.17 | $0.13 | $0.06 | $0.15 | $0.33 | $0.20 | $0.77 | $0.74 | $2.12 |
Related_Party_Transactions_Add
Related Party Transactions - Additional Information (Detail) (USD $) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Related Party Transactions [Abstract] | ' | ' | ' |
Related party legal fees per month | $10 | $10 | $10 |
Subsequent_Events_Additional_I
Subsequent Events - Additional Information (Detail) (USD $) | 12 Months Ended | 0 Months Ended | 1 Months Ended | ||||
In Millions, except Share data, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Feb. 27, 2014 | Jan. 21, 2014 | Feb. 28, 2014 | Feb. 20, 2014 |
Subsequent Events [Member] | Subsequent Events [Member] | Subsequent Events [Member] | Subsequent Events [Member] | ||||
Subsequent Event [Line Items] | ' | ' | ' | ' | ' | ' | ' |
Dividend declaration date | 21-Jan-14 | ' | ' | ' | ' | ' | ' |
Cash dividend per common share | ' | ' | ' | ' | $0.09 | ' | ' |
Dividend record date | 6-Feb-14 | ' | ' | ' | ' | ' | ' |
Dividend payment date | 20-Feb-14 | ' | ' | ' | ' | ' | ' |
Principal payment | ' | ' | ' | ' | ' | $16.50 | ' |
Cash dividend | ' | ' | ' | ' | ' | ' | $5.10 |
Stock repurchased, shares | 5,608,000 | 1,786,000 | 1,112,000 | 400,000 | ' | ' | ' |
Shares repurchased, average price per share | ' | ' | ' | $25.13 | ' | ' | ' |
Additional shares authorized for purchase | ' | ' | ' | 3,100,000 | ' | ' | ' |
Schedule_II_Valuation_and_Qual1
Schedule II - Valuation and Qualifying Accounts (Detail) (USD $) | 12 Months Ended | ||
In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Allowance for Doubtful Accounts [Member] | ' | ' | ' |
Valuation and Qualifying Accounts Disclosure [Line Items] | ' | ' | ' |
Balance at beginning of period | $6 | $8 | $162 |
Charged to costs & expenses | 136 | 38 | 117 |
Deductions | 12 | 40 | 271 |
Balance at end of period | 130 | 6 | 8 |
Inventory Reserve [Member] | ' | ' | ' |
Valuation and Qualifying Accounts Disclosure [Line Items] | ' | ' | ' |
Balance at beginning of period | 11,957 | 9,419 | 8,932 |
Charged to costs & expenses | 11,457 | 3,042 | 1,137 |
Deductions | 421 | 504 | 650 |
Balance at end of period | 22,993 | 11,957 | 9,419 |
Warranty Liability [Member] | ' | ' | ' |
Valuation and Qualifying Accounts Disclosure [Line Items] | ' | ' | ' |
Balance at beginning of period | 9,653 | 4,118 | 3,304 |
Assumed on acquisition | ' | 3,781 | 33 |
Charged to costs & expenses | 4,051 | 5,363 | 2,860 |
Deductions | 4,727 | 3,609 | 2,079 |
Balance at end of period | 8,977 | 9,653 | 4,118 |
Deferred Tax Asset Valuation Allowance [Member] | ' | ' | ' |
Valuation and Qualifying Accounts Disclosure [Line Items] | ' | ' | ' |
Balance at beginning of period | 10,939 | 7,585 | 5,627 |
Assumed on acquisition | ' | ' | 1,462 |
Charged to costs & expenses | -1,056 | 3,594 | 496 |
Deductions | 1,041 | 240 | ' |
Balance at end of period | $8,842 | $10,939 | $7,585 |