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2302302 - Disclosure - Summary of significant accounting policies (Tables)
(http://www.f-e-t.com/role/SummaryOfSignificantAccountingPoliciesTables)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001401257 (http://www.sec.gov/CIK)
Accounting Policies [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
Accounting Policies [Abstract]
 
Schedule of Allowance for Doubtful Accounts
The change in amounts of the allowance for doubtful accounts during the three year period ended December 31, 2016 is as follows (in thousands):
Period ended
 
Balance at beginning of period
 
Charged to expense
 
Deductions or other
 
Balance at end of period
December 31, 2014
 
$
5,725

 
$
2,492

 
$
(2,571
)
 
$
5,646

December 31, 2015
 
5,646

 
4,358

 
(1,885
)
 
8,119

December 31, 2016
 
8,119

 
485

 
(5,273
)
 
3,331

  
Schedule of Product Warranty Liability
Changes in the Company’s warranty liability were as follows (in thousands):
Period ended
 
Balance at beginning of period
 
Charged to expense
 
Deductions or other
 
Balance at end of period
December 31, 2014
 
$
5,280

 
$
2,588

 
$
(2,554
)
 
$
5,314

December 31, 2015
 
5,314

 
5,539

 
(5,156
)
 
5,697

December 31, 2016
 
5,697

 
4,031

 
(6,504
)
 
3,224

  
Schedule of Earnings Per Share Reconciliation
The following is a reconciliation of the number of shares used for the basic and diluted earnings per share computations (shares in thousands):
 
 
December 31,
 
 
2016
 
2015
 
2014
Basic weighted average shares outstanding
 
91,226

 
89,908

 
92,628

Dilutive effect of stock option, restricted share plan and warrants
 
—

 
—

 
2,680

Diluted weighted average shares outstanding
 
91,226

 
89,908

 
95,308