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Restructuring Charges (Tables)
 12 Months Ended
Dec. 31, 2016
Restructuring Charges [Abstract]  
Schedule of Restructuring and Related Costs
For the years ended December 31, 2016, 2015, and 2014 total restructuring charges consist of the following components:
 
 
Years Ended December 31,
(in thousands)
 
2016
 
2015
 
2014
Severance charges
 
$
—

 
—

 
7,246

Lease termination charges
 
6

 
(3
)
 
4,808

Asset impairment charges
 
8,107

 
229

 
7,530

Gain on sale of assets held for sale, net
 
—

 
(401
)
 
(766
)
Professional fees and other charges
 
154

 
211

 
1,767

Total restructuring charges
 
$
8,267

 
36

 
20,585

 
 
 
 
 
 
 
The following table presents aggregate activity associated with accruals that resulted from the restructuring charges recorded during the years ended December 31, 2016, 2015, and 2014:
 
 
 
 
 
 
 
(in thousands)
 
Severance Charges
 
Lease Termination Charges
 
Total
Balance at December 31, 2013
 
$
1,572

 
1,383

 
2,955

Accruals for efficiency initiatives
 
7,246

 
4,808

 
12,054

Payments
 
(5,527
)
 
(652
)
 
(6,179
)
Balance at December 31, 2014
 
3,291

 
5,539

 
8,830

Accruals for efficiency initiatives
 
—

 
(3
)
 
(3
)
Payments
 
(1,361
)
 
(849
)
 
(2,210
)
Balance at December 31, 2015
 
1,930

 
4,687

 
6,617

Accruals for efficiency initiatives
 
—

 
6

 
6

Payments
 
(1,849
)
 
(725
)
 
(2,574
)
Balance at December 31, 2016
 
$
81

 
3,968

 
4,049