Supplemental Financial Information

6 Months Ended

Jun. 30, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

4. Supplemental Financial Information

Condensed Consolidated Balance Sheets Information

Accounts receivable, net of allowance for bad debts, consist of the following (in thousands):

	June 30,			December 31,
	2019			2018
Trade receivables	$	153,638		$	160,463
Value added tax receivables		14,314			13,237
Related party receivables		133			174
Other		460			205
		168,545			174,079
Allowance for bad debts		(5,459	)		(5,459	)
Total	$	163,086		$	168,620

Prepaid expenses and other current assets consist of the following (in thousands):

	June 30,		December 31,
	2019		2018
Deferred contract costs	$	45,736	$	70,021
Prepaid taxes		45,621		54,412
Rig spare parts and supplies		17,873		20,256
Current contract assets		7,398		6,832
Prepaid insurance		4,490		2,742
Other		9,006		9,133
Total	$	130,124	$	163,396

Accrued liabilities consist of the following (in thousands):

	June 30,		December 31,
	2019		2018
Payroll and benefits	$	43,340	$	47,564
Rig operating expenses		39,980		42,323
Accrued capital project/upgrade costs		32,916		37,379
Interest payable		28,234		28,234
Current operating lease liability		19,697		—
Personal injury and other claims		5,408		5,544
Deferred revenue		9,521		2,803
Shorebase and administrative costs		5,190		6,217
Other		7,908		2,164
Total	$	192,194	$	172,228

We adopted ASU 2016-02 effective January 1, 2019, which required us to recognize a right of use asset and a lease liability on the balance sheet for most leases. See Note 10.

Condensed Consolidated Statements of Cash Flows Information

Noncash investing activities excluded from the unaudited Condensed Consolidated Statements of Cash Flows and other supplemental cash flow information is as follows (in thousands):

	Six Months Ended June 30,
	2019			2018
Accrued but unpaid capital expenditures at period end	$	32,916		$	12,714
Common stock withheld for payroll tax obligations ⁽¹⁾		1,369			1,265
Cash interest payments		56,531			56,531
Cash income taxes paid, net of (refunds):
Foreign		10,025			4,035
State		(15	)		2

⁽¹⁾

^{Represents the cost of 128,189 shares and 85,580 shares of common stock withheld to satisfy payroll tax obligations incurred as a result of the vesting of restricted stock units in the six-month periods ended June 30, 2019 and 2018, respectively. These costs are presented as a deduction from stockholders’ equity in “Treasury stock” in our unaudited Condensed Consolidated Balance Sheets at June 30, 2019 and 2018, respectively.}