Significant Accounting Principles and Policies - Amortization Period of Acquired Intangibles (Details)	12 Months Ended
	Dec. 31, 2020
Minimum | Customer relationships
Product Information [Line Items]
Amortization period of acquired intangibles	6 years
Minimum | Technology
Product Information [Line Items]
Amortization period of acquired intangibles	3 years
Minimum | Trade name
Product Information [Line Items]
Amortization period of acquired intangibles	5 years
Maximum | Customer relationships
Product Information [Line Items]
Amortization period of acquired intangibles	13 years
Maximum | Technology
Product Information [Line Items]
Amortization period of acquired intangibles	5 years
Maximum | Trade name
Product Information [Line Items]
Amortization period of acquired intangibles	10 years