Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Tables)

v3.19.1
Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2018
Accounting Policies [Abstract]  
Schedule of Cash and Cash Equivalents
 
December 31,
Dollars in thousands
2018
 
2017
Cash and cash equivalents
$
48,602

 
$
141,549

Restricted cash
10,389

 
—

Cash, cash equivalents and restricted cash at end of period
$
58,991

 
$
141,549

Restrictions on Cash and Cash Equivalents
 
December 31,
Dollars in thousands
2018
 
2017
Cash and cash equivalents
$
48,602

 
$
141,549

Restricted cash
10,389

 
—

Cash, cash equivalents and restricted cash at end of period
$
58,991

 
$
141,549

Summary of Significant Total Accounts and Notes Receivable The components of our accounts receivable, net of allowance for bad debt balance are as follows:
 
December 31,
Dollars in thousands
2018
 
2017
Trade
$
144,204

 
$
130,075

Allowance for bad debt (1)
(7,767
)
 
(7,564
)
Total accounts and notes receivable, net of allowance for bad debt
$
136,437

 
$
122,511

(1)
Additional information on the allowance for bad debt for the years ended December 31, 2018, 2017 and 2016 is reported on Schedule II — Valuation and Qualifying Accounts.
Summary of Depreciable Lives for Different Categories of Property Plant and Equipment Depreciable lives for different categories of property, plant and equipment are as follows:
Computer, office equipment and other
3 to 10 years
Land drilling equipment
3 to 20 years
Barge drilling equipment
3 to 20 years
Drill pipe, rental tools and other
4 to 15 years
Buildings and improvements
5 to 30 years