Consolidated Statements of Cash Flows - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Cash flows provided by operating activities |
|
|
|
| Net income |
$ 46,421
|
$ 53,200
|
$ 74,034
|
| Adjustments to reconcile net income to net cash provided by operating activities: |
|
|
|
| Depreciation and amortization |
10,187
|
8,981
|
10,316
|
| Provision for (benefit from) deferred income taxes |
(3,721)
|
5,388
|
(1,972)
|
| Change in fair value of derivative instruments |
(3,295)
|
(396)
|
(617)
|
| Other than temporary impairment of marketable securities |
606
|
|
336
|
| Impairment of fixed assets |
|
247
|
18,102
|
| Gain on sale of investments |
(713)
|
(4,335)
|
(1,982)
|
| Losses on disposals of fixed assets |
178
|
108
|
261
|
| Stock based compensation |
2,043
|
1,440
|
|
| Noncash interest expense |
26
|
25
|
24
|
| Changes in operating assets and liabilities: |
|
|
|
| Accounts receivable |
3,816
|
(21,515)
|
(5,838)
|
| Accounts receivable – related parties |
1,163
|
3,456
|
(4,629)
|
| Inventory |
(19,604)
|
(3,189)
|
(172)
|
| Income taxes receivable |
5,602
|
(4,984)
|
(14,732)
|
| Prepaid expenses |
28
|
173
|
(248)
|
| Prepaid expenses - related parties |
(35)
|
|
32
|
| Accrued interest on marketable securities |
30
|
99
|
(79)
|
| Other assets |
(668)
|
65
|
(266)
|
| Accounts payable |
4,056
|
15,459
|
2,338
|
| Accounts payable - related parties |
(2,668)
|
2,055
|
(3,030)
|
| Income taxes payable |
|
|
(620)
|
| Accrued expenses and other current liabilities |
(1,673)
|
(3,153)
|
4,209
|
| Accrued expenses and other current liabilities - related parties |
(46)
|
43
|
3
|
| Deferred revenue |
721
|
(2,524)
|
(14,734)
|
| Other noncurrent liabilities |
(2,831)
|
1,309
|
1,718
|
| Net cash provided by operating activities |
39,623
|
51,952
|
62,454
|
| Cash flows from investing activities |
|
|
|
| Collateralization of derivative instruments |
1,239
|
(985)
|
1,374
|
| Purchase of marketable securities |
(39,136)
|
(41,369)
|
(49,348)
|
| Proceeds from the sale of marketable securities |
48,546
|
57,098
|
41,198
|
| Sales of auction rate securities |
|
|
1,150
|
| Proceeds from the sale of fixed assets |
6
|
81
|
57
|
| Expenditures for intangible assets |
(1,408)
|
|
|
| Capital expenditures |
(7,222)
|
(8,117)
|
(18,542)
|
| Net cash provided by (used in) investing activities |
2,025
|
6,708
|
(24,111)
|
| Cash flows from financing activities |
|
|
|
| Proceeds from the issuance of stock |
|
|
19,292
|
| Minimum tax withholding on stock options exercised |
(120)
|
(175)
|
(45)
|
| Excess tax benefits associated with stock awards and options |
(344)
|
59
|
40
|
| Deferred financing costs |
(721)
|
|
|
| Payment of dividend |
(10,493)
|
(20,928)
|
(29,904)
|
| Net cash used in financing activities |
(11,678)
|
(21,044)
|
(10,617)
|
| Net change in cash and cash equivalents |
29,970
|
37,616
|
27,726
|
| Cash and cash equivalents at beginning of period |
124,079
|
86,463
|
58,737
|
| Cash and cash equivalents at end of period |
154,049
|
124,079
|
86,463
|
| Cash paid for interest |
|
|
23
|
| Cash paid for income taxes |
$ 13,381
|
$ 12,372
|
$ 38,890
|