Shareholders' Equity - Equity Component (Details)	3 Months Ended
	Dec. 31, 2016 shares	Jul. 02, 2016 shares trade_day $ / shares
Debt Instrument [Line Items]
Fair value price per TEU (in dollars per share) | $ / shares		$ 100
Equity Component [Member]
Debt Instrument [Line Items]
Fair value price per TEU (in dollars per share) | $ / shares		$ 76.19
Threshold consecutive trading days	20 days	20 days
Threshold trading days | trade_day		23
Equity Component [Member] | Common Class A [Member]
Debt Instrument [Line Items]
Threshold stock price (in dollars per share) | $ / shares		$ 50.40
Number of equity instruments per contract, if applicable market value equal to or greater than conversion price (in shares)		1.9841
Debt instrument convertible reference price (in dollars per share) | $ / shares		$ 42.00
Number of equity instruments per contract, if applicable market value less than or equal to reference price (in shares)		2.3810
Equity Component [Member] | Minimum [Member] | Common Class A [Member]
Debt Instrument [Line Items]
Convertible, number of equity instruments per contract (in shares)	1.9841	1.9841
Number of equity instruments (in shares)		2,282
Equity Component [Member] | Maximum [Member] | Common Class A [Member]
Debt Instrument [Line Items]
Convertible, number of equity instruments per contract (in shares)	2.3810	2.3810
Number of equity instruments (in shares)		2,738,000