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Unaudited Quarterly Consolidated Financial Information (Tables)
 12 Months Ended
Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]  
Schedule of Unaudited Quarterly Consolidated Financial Information
 
For the Quarter Ended
 
March 31,
2016
 
June 30,
2016
 
September 30,
2016
 
December 31, 2016
 
(in thousands, except per share data)
Revenues
$
279,140

 
$
323,828

 
$
245,888

 
$
187,417

Gross profit
129,366

 
169,640

 
122,434

 
78,724

Asset impairment charges
193

 
572

 
930

 
1,449

Income (loss) from operations
14,243

 
20,605

 
(1,215
)
 
(39,787
)
Net income (loss)
10,146

 
15,537

 
(1,533
)
 
(40,644
)
Net income (loss) attributable to common shareholders
6,361

 
11,735

 
(5,352
)
 
(44,482
)
Basic income (loss) per common share
$
0.07

 
$
0.13

 
$
(0.07
)
 
$
(0.60
)
Diluted income (loss) per common share
$
0.07

 
$
0.13

 
$
(0.07
)
 
$
(0.60
)
 
For the Quarter Ended
 
March 31,
2015
 
June 30,
2015
 
September 30,
2015
 
December 31, 2015
 
(in thousands, except per share data)
Revenues
$
262,193

 
$
345,671

 
$
274,088

 
$
208,678

Gross profit
127,370

 
189,870

 
120,821

 
72,744

Restructuring
3,663

 
2,810

 
981

 
1,274

Asset impairment charges
—

 
2,075

 
5,460

 
7,771

Income (loss) from operations
(2,362
)
 
16,349

 
(20,730
)
 
(65,581
)
Net income (loss)
(2,425
)
 
13,426

 
(24,024
)
 
(70,173
)
Net income (loss) attributable to common shareholders
(5,979
)
 
9,690

 
(27,776
)
 
(73,942
)
Basic income (loss) per common share
$
(0.08
)
 
$
0.11

 
$
(0.37
)
 
$
(1.01
)
Diluted income (loss) per common share
$
(0.08
)
 
$
0.11

 
$
(0.37
)
 
$
(1.01
)