Unaudited Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands |
3 Months Ended |
12 Months Ended |
Mar. 31, 2016 |
Mar. 31, 2015 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Cash flows from operating activities: |
|
|
|
|
|
| Net income |
$ 37,333
|
$ 30,046
|
$ 89,388
|
$ 101,931
|
$ 78,236
|
| Adjustments to reconcile net income to net cash provided by operating activities: |
|
|
|
|
|
| Amortization of debt issuance costs and accretion of original issue discount |
2,194
|
1,897
|
8,170
|
4,860
|
1,286
|
| Amortization of debt issuance costs |
30
|
30
|
122
|
122
|
2,511
|
| Stock-based compensation |
447
|
445
|
3,434
|
1,820
|
1,420
|
| Deferred compensation |
0
|
19
|
19
|
115
|
(181)
|
| Gain (Loss) on Extinguishment of Debt |
|
|
0
|
0
|
14,928
|
| Loss on disposal of fixed assets |
13
|
48
|
89
|
55
|
168
|
| Deferred income taxes |
11,373
|
(140)
|
(12,071)
|
14,835
|
(230)
|
| Tax benefit from exercise of stock options |
(3)
|
0
|
(1,536)
|
0
|
0
|
| Provision for legal settlement |
|
|
32,000
|
0
|
0
|
| Payment of legal settlement |
(32,000)
|
0
|
|
|
|
| Effect of changes in operating assets and liabilities: |
|
|
|
|
|
| Receivables |
16,387
|
9,847
|
(1,487)
|
(26,245)
|
(17,264)
|
| Inventories |
7,306
|
3,610
|
5,140
|
(20,746)
|
(23,062)
|
| Prepaid expenses and other assets |
1,740
|
1,899
|
(1,189)
|
(1,917)
|
(864)
|
| Accounts payable |
1,970
|
4,998
|
(1,733)
|
9,910
|
2,612
|
| Other liabilities |
(4,257)
|
3,695
|
17,873
|
5,395
|
9,442
|
| Net cash provided by operating activities |
42,533
|
56,394
|
138,219
|
90,135
|
69,002
|
| Cash flows from investing activities: |
|
|
|
|
|
| Capital expenditures |
(796)
|
(2,184)
|
(9,556)
|
(32,948)
|
(63,507)
|
| Increase (Decrease) in Restricted Cash |
|
|
0
|
(350)
|
203
|
| Net cash used in investing activities |
(796)
|
(2,184)
|
(9,556)
|
(33,298)
|
(63,304)
|
| Cash flows from financing activities: |
|
|
|
|
|
| Payments of Debt Issuance Costs |
|
|
0
|
0
|
(4,738)
|
| Principal payments on long-term debt |
(990)
|
(990)
|
(3,960)
|
(3,960)
|
(3,983)
|
| Tax benefit from exercise of stock options |
3
|
0
|
1,536
|
0
|
0
|
| Proceeds from exercise of stock options |
61
|
36
|
2,251
|
37
|
127
|
| Net cash used in financing activities |
(926)
|
(954)
|
(173)
|
(3,923)
|
(8,594)
|
| Effect of exchange rate changes on cash and cash equivalents |
23
|
0
|
(25)
|
0
|
0
|
| Net increase in cash and cash equivalents |
40,834
|
53,256
|
128,465
|
52,914
|
(2,896)
|
| Cash and cash equivalents at beginning of period |
224,253
|
95,788
|
95,788
|
42,874
|
45,770
|
| Cash and cash equivalents at end of period |
$ 265,087
|
$ 149,044
|
$ 224,253
|
$ 95,788
|
$ 42,874
|