Business Combinations - Soberlink (Details) - USD ($)	May. 18, 2015	Sep. 30, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Goodwill		$ 615,937,000	$ 493,890,000
Soberlink, Inc
Business Acquisition [Line Items]
Outstanding common stock acquired, percent	100.00%
Cash consideration	$ 24,400,000
Retrospective adjustment related to working capital	200,000
Accounts receivable and other current assets	295,000
Inventory	385,000
Intangible assets	15,200,000
Total assets acquired	15,880,000
Accounts payable	18,000
Deferred tax and other tax liabilities	6,176,000
Total identifiable net assets	9,686,000
Goodwill	14,716,000
Total consideration paid	$ 24,402,000
Technology | Soberlink, Inc
Business Acquisition [Line Items]
Identifiable intangible assets, useful life	8 years
Customer Relationships | Soberlink, Inc
Business Acquisition [Line Items]
Identifiable intangible assets, useful life	20 years
Soberlink Healthcare, LLC | Soberlink, Inc
Business Acquisition [Line Items]
Loan provided (amount)	$ 2,200,000.0
Loan issued, interest rate	10.00%
DevCo, LLC | Soberlink, Inc
Business Acquisition [Line Items]
Annual royalty fee to use any improvements to the existing technology resident	$ 1,300,000