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Income Taxes | 12 Months Ended
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Dec. 31, 2012
Income Taxes | 11. Income Taxes Income before the provision for income taxes is attributable to the following jurisdictions (in thousands) for years ended December 31:
|  | 2012 |  |  | 2011 |  |  | 2010 |
United States |  | $ | 186,301 |  |  | $ | 144,928 |  |  | $ | 92,979 |
Foreign |  |  | 124,489 |  |  |  | 65,949 |  |  |  | 58,301 |
Total |  | $ | 310,790 |  |  | $ | 210,877 |  |  | $ | 151,280 |
The provision (benefit) for income taxes for the years ended December 31 consists of the following (in thousands):
|  | 2012 |  |  | 2011 |  |  | 2010 |
Current: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  | $ | 62,886 |  |  | $ | 45,817 |  |  | $ | 31,337 |
State |  |  | 4,551 |  |  |  | 2,578 |  |  |  | 2,545 |
Foreign |  |  | 29,551 |  |  |  | 17,375 |  |  |  | 13,496 |
Total current |  |  | 96,988 |  |  |  | 65,770 |  |  |  | 47,378 |
Deferred: |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  | 2,295 |  |  |  | 1,538 |  |  |  | (1,308 | )
State |  |  | 417 |  |  |  | 132 |  |  |  | (93 | )
Foreign |  |  | (5,109 | ) |  |  | (3,898 | ) |  |  | (2,593 | )
Total deferred |  |  | (2,397 | ) |  |  | (2,228 | ) |  |  | (3,994 | )
Total provision |  | $ | 94,591 |  |  | $ | 63,542 |  |  | $ | 43,384 |
The provision for income taxes differs from amounts computed by applying the U.S. federal tax rate of 35% to income before income taxes for the years ended December 31 due to the following (in thousands):
|  | 2012 |  |  | 2011 |  |  | 2010 |
Computed “expected” tax expense |  | $ | 108,777 |  |  |  | 35.00 | % |  | $ | 73,807 |  |  |  | 35.00 | % |  | $ | 52,948 |  |  |  | 35.00 | %
Changes resulting from: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign income tax differential |  |  | (11,695 | ) |  |  | (3.76 | ) |  |  | (8,333 | ) |  |  | (3.95 | ) |  |  | (7,074 | ) |  |  | (4.68 | )
State taxes net of federal benefits |  |  | 3,858 |  |  |  | 1.24 |  |  |  | 1,923 |  |  |  | 0.91 |  |  |  | 1,279 |  |  |  | 0.85 |
Foreign-sourced nontaxable income |  |  | (8,840 | ) |  |  | (2.84 | ) |  |  | (4,423 | ) |  |  | (2.10 | ) |  |  | (3,873 | ) |  |  | (2.56 | )
Other |  |  | 2,491 |  |  |  | 0.76 |  |  |  | 568 |  |  |  | 0.27 |  |  |  | 104 |  |  |  | 0.07 |
Provision for income taxes |  | $ | 94,591 |  |  |  | 30.40 | % |  | $ | 63,542 |  |  |  | 30.13 | % |  | $ | 43,384 |  |  |  | 28.68 | %
The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and liabilities at December 31 are as follows (in thousands):
|  | 2012 |  |  | 2011 |
Deferred tax assets: |  |  |  |  |  |  |  |
Accounts receivable, principally due to the allowance for doubtful accounts |  | $ | 4,028 |  |  | $ | 3,251 |
Accrued expenses not currently deductible for tax |  |  | 2,257 |  |  |  | 2,995 |
Stock based compensation |  |  | 8,226 |  |  |  | 8,289 |
Foreign tax credit |  |  | 177 |  |  |  | 177 |
Net operating loss carry forwards |  |  | 4,291 |  |  |  | 3,168 |
Fixed assets |  |  | 580 |  |  |  | — |
Other |  |  | 643 |  |  |  | 363 |
Deferred tax assets before valuation allowance |  |  | 20,202 |  |  |  | 18,243 |
Valuation allowance |  |  | (1,382 | ) |  |  | (1,709 | )
Deferred tax assets, net |  |  | 18,820 |  |  |  | 16,534 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Property and equipment, principally due to differences between book and tax depreciation |  |  | — |  |  |  | (4,020 | )
Intangibles—including goodwill |  |  | (165,270 | ) |  |  | (139,126 | )
Basis difference in investment in foreign subsidiaries |  |  | (26,926 | ) |  |  | — |
Other |  |  | (769 | ) |  |  | — |
Deferred tax liabilities |  |  | (192,965 | ) |  |  | (143,146 | )
Net deferred tax liabilities |  | $ | (174,145 | ) |  | $ | (126,612 | )
The Company’s deferred tax balances are classified in its balance sheets based on net current items and net non-current items as of December 31 as follows (in thousands):
|  | 2012 |  |  | 2011 |
Current deferred tax assets and liabilities: |  |  |  |  |  |  |  |
Current deferred tax assets |  | $ | 6,464 |  |  | $ | 6,140 |
Long term deferred tax assets and liabilities: |  |  |  |  |  |  |  |
Long term deferred tax assets |  |  | 12,357 |  |  |  | 10,394 |
Long term deferred tax liabilities |  |  | (192,966 | ) |  |  | (143,146 | )
Net long term deferred tax liabilities |  |  | (180,609 | ) |  |  | (132,752 | )
Net deferred tax liabilities |  | $ | (174,145 | ) |  | $ | (126,612 | )
We reduce federal and state income taxes payable by the tax benefits associated with the exercise of certain stock options. To the extent realized tax deductions for options exceed the amount previously recognized as deferred tax benefits related to share-based compensation for these option awards, we record an excess tax benefit in stockholders’ equity. We recorded excess tax benefits of $29.4 million, $13.7 million and $10.7 million in the years ended 2012, 2011 and 2010, respectively. At December 31, 2012, U.S. taxes were not provided on earnings of the Company’s foreign subsidiaries. The Company’s intent is for such earnings to be reinvested by the subsidiaries or to be repatriated only when it would be tax effective through the utilization of foreign tax credits. If in the future these earnings are repatriated to the U.S, or if the Company determines that the earnings will be remitted in the foreseeable future, an additional tax provision and related liability may be required. If such earnings were distributed, U.S. income taxes would be partially reduced by available credits for taxes paid to the jurisdictions in which the income was earned. Cumulative undistributed earnings of non-U.S. subsidiaries for which U.S. taxes have not been provided are included in consolidated retained earnings in the amount of approximately $388.3 million, $263.8 million and $197.9 million at December 31, 2012, 2011 and 2010, respectively. Because of the availability of United States foreign tax credits, it is not practicable to determine the domestic federal income tax liability that would be payable if such earnings were not reinvested indefinitely. The valuation allowance for deferred tax assets at December 31, 2012 and 2011 was $1.4 million and $1.7 million, respectively. The valuation allowance relates to foreign and state net operating loss carry forwards and foreign tax credit carry forwards. The net change in the total valuation allowance for the years ended December 31, 2012 and 2011 was a decrease of $0.3 million and $0.1 million, respectively. As of December 31, 2012, the Company had aggregate net operating loss carry forwards for state income tax purposes of $33.6 million that are available to offset future state taxable income through 2023. Additionally, the Company had $9.6 million of net operating loss carry forwards for foreign income tax purposes that are available to offset future foreign taxable income. The foreign net operating loss carry forwards will not expire in future years. The Company recognizes interest and penalties on unrecognized tax benefits (including interest and penalties calculated on uncertain tax positions on which the Company believes it will ultimately prevail) within the provision for income taxes on continuing operations in the consolidated financial statements. This policy is a continuation of the Company’s policy prior to adoption of the guidance regarding uncertain tax positions. During 2012, 2011 and 2010, the Company had recorded accrued interest and penalties related to the unrecognized tax benefits of $1.5 million, $0.9 million and $0.5 million, respectively. The Company files numerous consolidated and separate income tax returns in the U.S. federal jurisdiction and various state and foreign jurisdictions. The statute of limitations for the Company’s U.S. federal income tax returns has expired for years prior to 2007. The statute of limitations for the Company’s U.K. income tax returns has expired for years prior to 2010. The statute of limitations has expired for years prior to 2008 for the Company’s Czech Republic income tax returns. A reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits including interest for the years ended December 31, 2012, 2011 and 2010 is as follows (in thousands):
Unrecognized tax benefits at December 31, 2009 |  |  | 3,601 |
Additions based on tax provisions related to the current year |  |  | 549 |
Deductions based on settlement/expiration of prior year tax positions |  |  | (680 | )
Unrecognized tax benefits at December 31, 2010 |  |  | 3,912 |
Additions based on tax provisions related to the current year |  |  | 524 |
Additions based on tax provisions related to the prior year |  |  | 1,010 |
Deductions based on settlement/expiration of prior year tax positions |  |  | (452 | )
Unrecognized tax benefits at December 31, 2011 |  | $ | 4,994 |
Additions based on tax provisions related to the current year |  |  | 1,870 |
Additions based on tax provisions related to the prior year |  |  | 716 |
Deductions based on settlement/expiration of prior year tax positions |  |  | (503 | )
Unrecognized tax benefits at December 31, 2012 |  | $ | 7,077 |
As of December 31, 2012 the Company had total unrecognized tax benefits of $7.1 million of which $6.3 million, if recognized, would affect its effective tax rate. It is not anticipated that there are any unrecognized tax benefits that will significantly increase or decrease within the next twelve months.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 136, 172 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 43, 44, 45, 46, 47, 48, 49 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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