Restatement - Statement of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net (loss) income	$ (158,000)	$ 32,000	$ 134,000
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Deferred income taxes	(142,000)	(44,000)	8,000
Changes in assets and liabilities, net of businesses acquired:
Accounts receivable	2,000	(70,000)	(7,000)
Inventories	(13,000)	(2,000)	3,000
Other assets	(7,000)	(13,000)	0
Accrued liabilities	(5,000)	164,000	6,000
Deferred revenue	16,000	10,000	2,000
Income taxes	47,000	(5,000)	0
Increase (Decrease) in Other Operating Assets and Liabilities, Net	26,000	8,000	0
Net cash provided by operating activities	110,000	248,000	194,000
Effect of exchange rate changes on cash	(15,000)	$ 2,000	$ 1,000
As Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net (loss) income	(137,000)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Deferred income taxes	(124,000)
Changes in assets and liabilities, net of businesses acquired:
Accounts receivable	(6,000)
Inventories	(10,000)
Other assets	(6,000)
Accrued liabilities	(13,000)
Deferred revenue	17,000
Income taxes	38,000
Increase (Decrease) in Other Operating Assets and Liabilities, Net	8,000
Net cash provided by operating activities	111,000
Effect of exchange rate changes on cash	(16,000)
Restatement Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net (loss) income	(21,000)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Deferred income taxes	(18,000)
Changes in assets and liabilities, net of businesses acquired:
Accounts receivable	8,000
Inventories	(3,000)
Other assets	(1,000)
Accrued liabilities	8,000
Deferred revenue	(1,000)
Income taxes	9,000
Increase (Decrease) in Other Operating Assets and Liabilities, Net	18,000
Net cash provided by operating activities	(1,000)
Effect of exchange rate changes on cash	$ 1,000