Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Revenues:
Total revenues	$ 336,756	$ 304,351
Expenses:
General and administrative, including stock-based compensation of $3,388 and $2,817 in three months ended March 31, 2014 and 2013, respectively	39,559	41,957
Depreciation and amortization	51,705	49,781
(Gain) loss on disposal of assets	(679)	1,089
Total expenses	322,772	303,875
Operating income	13,984	476
Other income (expense):
Interest expense	(16,859)	(16,808)
Interest income	13	17
Other income	366	162
Loss from continuing operations before income taxes	(2,496)	(16,153)
Income tax benefit	589	7,375
Net loss	(1,907)	(8,778)
Basic earnings per share of common stock:
Basic earnings per common share:	$ (0.05)	$ (0.22)
Diluted earnings per share of common stock:
Diluted earnings per common share:	$ (0.05)	$ (0.22)
Completion And Remedial Services [Member]
Revenues:
Total revenues	137,485	118,361
Expenses:
Depreciation and amortization	15,727	14,932
Total expenses	86,480	79,008
Fluid Services [Member]
Revenues:
Total revenues	92,835	84,330
Expenses:
Depreciation and amortization	16,063	14,311
Total expenses	66,782	57,874
Well Servicing [Member]
Revenues:
Total revenues	92,912	87,675
Expenses:
Depreciation and amortization	13,980	14,787
Total expenses	69,759	65,002
Contract Drilling
Revenues:
Total revenues	13,524	13,985
Expenses:
Total expenses	$ 9,166	$ 9,164