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v3.6.0.2

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Cash flows from operating activities: |  |  |
Net income | $ 440,645 | $ 375,236 | $ 355,260
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation of property and equipment and amortization of other intangible assets | 58,167 | 61,491 | 63,690
Stock-based compensation | 50,044 | 46,075 | 43,977
Excess tax benefit associated with stock-based compensation | (25,058) | (18,464) | (6,054)
Unrealized Gain (Loss) on Derivatives | (2,402) | 14,130 | (2,249)
contingent interest payment for debenture | 13,385 | 10,759 | 0
Amortization of Financing Costs and Discounts | 13,411 | 12,292 | 10,878
Other, net | (3,787) | (1,781) | 480
Changes in operating assets and liabilities |  |  |
Accounts receivable | (871) | 661 | (73)
Prepaid expenses and other assets | 8,980 | (1,728) | 11,571
Accounts payable and accrued liabilities | 40,244 | 21,013 | 45,419
Deferred revenues | 14,347 | 70,988 | 34,518
Net deferred income taxes and other long term tax liabilities | 87,614 | 82,328 | 43,532
Net cash provided by operating activities | 667,949 | 651,482 | 600,949
Cash flows from investing activities: |  |  |
Proceeds from maturities and sales of marketable securities | 3,817,899 | 2,767,027 | 3,428,659
Purchases of marketable securities | (3,691,057) | (3,219,329) | (3,277,096)
Purchases of property and equipment | (26,574) | (40,656) | (39,327)
Payments to Acquire Intangible Assets | (143,000) | 0 | 0
Other investing activities | 2,333 | (3,941) | 452
Net cash provided by (used in) investing activities | (40,399) | (496,899) | 112,688
Cash flows from financing activities: |  |  |
Proceeds from issuance of common stock from option exercises and employee stock purchase plans | 13,670 | 14,690 | 17,597
Repurchases of common stock | (662,491) | (643,169) | (883,403)
Proceeds received from borrowing | 0 | 492,237 | 0
Excess tax benefit associated with stock-based compensation | 25,058 | 18,464 | 6,054
Net cash used in financing activities | (623,763) | (117,778) | (859,752)
Effect of exchange rate changes on cash and cash equivalents | (501) | 246 | (1,500)
Net increase (decrease) in cash and cash equivalents | 3,286 | 37,051 | (147,615)
Cash and cash equivalents at beginning of period | 228,659 | 191,608 | 339,223
Cash and cash equivalents at end of period | 231,945 | 228,659 | 191,608
Supplemental cash flow disclosures: |  |  |
Cash paid for interest, net of capitalized interest | 115,544 | 99,473 | 75,088
Cash paid for income taxes, net of refunds received | $ 14,303 | $ 39,723 | $ 35,201

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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition contingent interest payment for debenture + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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