Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands |
12 Months Ended |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Reconciliation of the beginning and ending amount of unrecognized tax benefits |
|
|
|
| Unrecognized tax benefits balance at beginning of year |
$ 437
|
$ 522
|
$ 1,033
|
| Reductions for tax positions of prior years |
(469)
|
|
(465)
|
| Reductions for currency translations |
|
(85)
|
(46)
|
| Increases for currency translations |
32
|
|
|
| Unrecognized tax benefits balance at end of year |
|
437
|
$ 522
|
| Deferred tax assets resulting from the exercise of employee stock options, which will be allocated to paid-in capital |
100
|
100
|
|
| Pre-change net operating losses that can be used in future years |
13,500
|
|
|
| Deferred tax assets, U.S. net operating loss carryforwards |
$ 115,600
|
|
|
| Unrecognized loss recognition period |
5 years
|
|
|
| Unrecognized loss from change in ownership that should be recognized during the recognition period |
$ 7,600
|
|
|
| Amount of research credit carryforwards subject to IRC Section 382 limitations |
1,200
|
|
|
| Un-repatriated foreign earnings |
0
|
|
|
| Accrued interest and penalties |
|
400
|
|
| Canada |
|
|
|
| Reconciliation of the beginning and ending amount of unrecognized tax benefits |
|
|
|
| Research and experimental development expenditure carryforwards |
16,700
|
|
|
| Canadian ITC credit carryforwards |
1,600
|
|
|
| U.S. |
|
|
|
| Reconciliation of the beginning and ending amount of unrecognized tax benefits |
|
|
|
| Gross deferred tax liability |
2,883
|
5,447
|
|
| Net operating loss carryforwards |
43,929
|
27,202
|
|
| Foreign |
|
|
|
| Reconciliation of the beginning and ending amount of unrecognized tax benefits |
|
|
|
| Net operating loss carryforwards |
8,624
|
$ 5,797
|
|
| Foreign | Canada |
|
|
|
| Reconciliation of the beginning and ending amount of unrecognized tax benefits |
|
|
|
| Unused net operating loss carryforwards |
13,700
|
|
|
| Federal and state |
|
|
|
| Reconciliation of the beginning and ending amount of unrecognized tax benefits |
|
|
|
| Unused net operating loss carryforwards |
830,000
|
|
|
| Net operating loss carryforwards assumed during acquisition |
117,000
|
|
|
| Net operating loss carryforwards generated by the Company subsequent to acquisition |
713,000
|
|
|
| Net operating losses not subject to IRC section 382 |
$ 102,200
|
|
|