Income Taxes (Details) - USD ($)
$ in Thousands |
12 Months Ended |
|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Dec. 31, 2012 |
| Components of Deferred Tax Assets and Liabilities [Abstract] |
|
|
|
|
| Inventories |
$ 1,228
|
$ 1,869
|
|
|
| Accrued liabilities |
12,491
|
307
|
|
|
| Transaction costs |
0
|
1,085
|
|
|
| Stock-based compensation |
1,378
|
1,024
|
|
|
| Capitalized debt |
237
|
301
|
|
|
| Long-term incentive plan |
834
|
746
|
|
|
| Research and development |
0
|
41
|
|
|
| State net operating loss carryforwards |
2,152
|
2,072
|
|
|
| Foreign net operating loss carryforwards |
254
|
0
|
|
|
| State tax credits |
1,826
|
325
|
|
|
| Federal benefit related to uncertain tax positions |
2,697
|
0
|
|
|
| Other |
518
|
322
|
|
|
| Deferred tax assets, gross |
23,615
|
8,092
|
|
|
| Valuation allowance |
(782)
|
0
|
|
|
| Total deferred tax assets, net |
22,833
|
8,092
|
|
|
| Property, plant, and equipment |
(20,441)
|
(18,176)
|
|
|
| Prepaids |
(696)
|
0
|
|
|
| Bond premiums |
(1,057)
|
(1,348)
|
|
|
| Total deferred tax liabilities |
(22,194)
|
(19,524)
|
|
|
| Net deferred tax assets |
639
|
|
|
|
| Net deferred tax liabilities |
|
11,432
|
|
|
| Unrecognized Tax Benefits |
9,207
|
7,518
|
$ 4,883
|
$ 0
|
| Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions |
|
206
|
2,924
|
|
| Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions |
1,845
|
2,429
|
1,959
|
|
| Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations |
(156)
|
|
|
|
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate |
8,700
|
6,900
|
$ 3,900
|
|
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued |
200
|
$ 300
|
|
|
| Decrease in Unrecognized Tax Benefits is Reasonably Possible |
$ 600
|
|
|
|