Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 309,622	$ 386,035
Investments	515,000	215,000
Accounts receivable, net of allowances of $534 and $4,162 at December 31, 2018 and 2017, respectively	263,838	224,129
Inventories	52,956	43,245
Prepaid expenses	25,017	23,182
Other current assets	67,572	76,686
Total current assets	1,234,005	968,277
Property, plant and equipment, net	200,358	170,080
Intangible assets, net	2,731,334	2,979,127
Goodwill	927,630	947,537
Deferred tax assets, net	57,879	34,559
Deferred financing costs	9,589	7,673
Other non-current assets	42,696	16,419
Total assets	5,203,491	5,123,672
Current liabilities:
Accounts payable	40,602	24,368
Accrued liabilities	264,887	198,779
Current portion of long-term debt	33,387	40,605
Income taxes payable	1,197	21,577
Deferred revenue	5,414	8,618
Total current liabilities	345,487	293,947
Deferred revenue, non-current	9,581	16,115
Long-term debt, less current portion	1,563,025	1,540,433
Deferred tax liabilities, net	309,097	383,472
Other non-current liabilities	218,879	176,608
Commitments and contingencies (Note 12)
Shareholders’ equity:
Ordinary shares, nominal value $0.0001 per share; 300,000 shares authorized; 57,504 and 59,898 shares issued and outstanding at December 31, 2018 and 2017, respectively	6	6
Non-voting euro deferred shares, €0.01 par value per share; 4,000 shares authorized, issued and outstanding at both December 31, 2018 and 2017	55	55
Capital redemption reserve	472	472
Additional paid-in capital	2,113,630	1,935,486
Accumulated other comprehensive loss	(197,791)	(140,878)
Retained earnings	841,050	917,956
Total shareholders’ equity	2,757,422	2,713,097
Total liabilities and shareholders’ equity	$ 5,203,491	$ 5,123,672