XML 39 R23.htm IDEA: XBRL DOCUMENT v3.6.0.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2016
Accounting Policies [Abstract]  
Schedule of Depreciation Expense
We recognized the following depreciation expense (in thousands): 
2016
$
36,212

2015
32,412

2014
29,340
Property, Plant and Equipment
A summary of our property and equipment as of December 31 is as follows (in thousands): 
 
Useful Lives (in years)
 
2016
 
2015
Furniture, fixtures, and equipment
3 to 12
 
$
236,180

 
$
200,215

Buildings
3 to 30
 
130,050

 
110,056

Corporate aircraft
10
 
11,334

 
11,334

Leasehold improvements
3 to 15
 
40,312

 
28,178

Land
 
 
23,635

 
23,759

Construction in progress
 
 
8,534

 
5,597

Less accumulated depreciation
 
 
(217,092
)
 
(188,265
)
Net property and equipment
 
 
$
232,953

 
$
190,874
Schedule of Amortization Expense of Software
We recognized the following amortization expense of purchased and internally developed software (in thousands): 
2016
 
$
11,404

2015
 
9,624

2014
 
8,921
Schedule of Other Assets, Noncurrent
A summary of our purchased and internally developed software as of December 31 is as follows (in thousands): 
 
2016
 
2015
Purchased software
$
23,753

 
$
23,569

Internally developed software
51,507

 
40,796

Less accumulated amortization
(47,957
)
 
(42,930
)
Net software
$
27,303

 
$
21,435