Accumulated Other Comprehensive Loss (Tables)
 6 Months Ended
Jun. 30, 2018
Equity [Abstract]  
Summary of Accumulated Other Comprehensive Loss
The following tables summarize the changes in the accumulated other comprehensive loss balance, net of tax, by component (in thousands):
 
Foreign Currency
 
Effective Portion of Change in Fair Value of Derivatives
 
Proportionate Share of Equity Investee’s OCI
 
Total
Balances at December 31, 2016
$
(43,500
)
 
$
(12,751
)
 
$
(6,498
)
 
$
(62,749
)
Other comprehensive income (loss) before reclassifications
9,749

 
(4,418
)
 
790

 
6,121

Amounts reclassified from accumulated other comprehensive loss
—

 
4,483

 
4,608

 
9,091

Net current period other comprehensive income
9,749

 
65

 
5,398

 
15,212

Balances at June 30, 2017
$
(33,751
)
 
$
(12,686
)
 
$
(1,100
)
 
$
(47,537
)
 
Foreign Currency
 
Effective Portion of Change in Fair Value of Derivatives
 
Proportionate Share of Equity Investee’s OCI
 
Total
Balances at December 31, 2017
$
(28,187
)
 
$
(4,347
)
 
$
7,315

 
$
(25,219
)
Other comprehensive income (loss) before reclassifications
(22,448
)
 
8,736

 
1,317

 
(12,395
)
Amounts reclassified from accumulated other comprehensive loss due to de-designation of interest rate swaps
—

 
(1,529
)
 
—

 
(1,529
)
Amounts reclassified from accumulated other comprehensive loss
—

 
2,618

 
2,489

 
5,107

Net current period other comprehensive income (loss)
(22,448
)
 
9,825

 
3,806

 
(8,817
)
Balances at June 30, 2018
$
(50,635
)
 
$
5,478

 
$
11,121

 
$
(34,036
)