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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Notes) | 12 Months Ended
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Dec. 31, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated Other Comprehensive Loss | Amounts related to the changes in accumulated other comprehensive loss were as follows (in thousands):
|  | Unrealized loss on marketable securities |  | Net unrealized loss on retirement plan(2) |  | Total |  | Affected line items in the consolidated statement of income
Balance January 1, 2013, net of tax |  | $ | (18 | ) |  | $ | (5,684 | ) |  | $ | (5,702 | ) |  |
Other comprehensive loss before reclassification |  | (6 | ) |  | 413 |  |  | 407 |  |  |
Reclassification to net income (1) |  | — |  |  | 927 |  |  | 927 |  |  | Selling, general and administrative and research and development
Change during period |  | (6 | ) |  | 1,340 |  |  | 1,334 |  |  |
Balance December 31, 2013, net of tax |  | $ | (24 | ) |  | $ | (4,344 | ) |  | $ | (4,368 | ) |  |
Other comprehensive loss before reclassification |  | (4 | ) |  | (385 | ) |  | (389 | ) |  |
Reclassification to net income (1) |  | — |  |  | 375 |  |  | 375 |  |  | Selling, general and administrative and research and development
Change during period |  | (4 | ) |  | (10 | ) |  | (14 | ) |  |
Balance December 31, 2014, net of tax |  | $ | (28 | ) |  | $ | (4,354 | ) |  | $ | (4,382 | ) |  |
Other comprehensive (loss) income before reclassification |  | (83 | ) |  | (388 | ) |  | (471 | ) |  |
Plan amendment cost |  | — |  |  | (5,963 | ) |  | (5,963 | ) |  |
Reclassification to net income (1) |  | — |  |  | 997 |  |  | 997 |  |  | Selling, general and administrative and research and development
Change during period |  | (83 | ) |  | (5,354 | ) |  | (5,437 | ) |  |
Balance December 31, 2015, net of tax |  | $ | (111 | ) |  | $ | (9,708 | ) |  | $ | (9,819 | ) |  |
_______________________________________________ (1) The Company reclassified amortization of prior service cost and actuarial loss for its retirement plan from accumulated other comprehensive loss to net income in the amounts of $1.0 million, $375,000 and $927,000 for the years ended December 31, 2015, 2014 and 2013, respectively. (2) Refer to Note 13: Supplemental Executive Retirement Plan.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669619-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e640-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e716-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e709-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e637-108580 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e681-108580 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Reclassification Adjustments -URI http://asc.fasb.org/extlink&oid=6522872 + Details
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